321189960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:540

約数の個数: 256

約数和(自身を含む): 1206374400

約数和(自身を除く): 885184440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 67, 70, 78, 84, 91, 104, 105, 120, 130, 134, 140, 156, 168, 182, 195, 201, 210, 260, 268, 273, 280, 312, 335, 364, 390, 402, 420, 439, 455, 469, 520, 536, 546, 670, 728, 780, 804, 840, 871, 878, 910, 938, 1005, 1092, 1317, 1340, 1365, 1407, 1560, 1608, 1742, 1756, 1820, 1876, 2010, 2184, 2195, 2345, 2613, 2634, 2680, 2730, 2814, 3073, 3484, 3512, 3640, 3752, 4020, 4355, 4390, 4690, 5226, 5268, 5460, 5628, 5707, 6097, 6146, 6585, 6968, 7035, 8040, 8710, 8780, 9219, 9380, 10452, 10536, 10920, 11256, 11414, 12194, 12292, 13065, 13170, 14070, 15365, 17121, 17420, 17560, 18291, 18438, 18760, 20904, 22828, 24388, 24584, 26130, 26340, 28140, 28535, 29413, 30485, 30730, 34242, 34840, 36582, 36876, 39949, 45656, 46095, 48776, 52260, 52680, 56280, 57070, 58826, 60970, 61460, 68484, 73164, 73752, 79898, 85605, 88239, 91455, 92190, 104520, 114140, 117652, 119847, 121940, 122920, 136968, 146328, 147065, 159796, 171210, 176478, 182910, 184380, 199745, 205891, 228280, 235304, 239694, 243880, 294130, 319592, 342420, 352956, 365820, 368760, 382369, 399490, 411782, 441195, 479388, 588260, 599235, 617673, 684840, 705912, 731640, 764738, 798980, 823564, 882390, 958776, 1029455, 1147107, 1176520, 1198470, 1235346, 1529476, 1597960, 1647128, 1764780, 1911845, 2058910, 2294214, 2396940, 2470692, 2676583, 3058952, 3088365, 3529560, 3823690, 4117820, 4588428, 4793880, 4941384, 5353166, 5735535, 6176730, 7647380, 8029749, 8235640, 9176856, 10706332, 11471070, 12353460, 13382915, 15294760, 16059498, 21412664, 22942140, 24706920, 26765830, 32118996, 40148745, 45884280, 53531660, 64237992, 80297490, 107063320, 160594980, 321189960]

約数ペア:

[(1, 321189960), (2, 160594980), (3, 107063320), (4, 80297490), (5, 64237992), (6, 53531660), (7, 45884280), (8, 40148745), (10, 32118996), (12, 26765830), (13, 24706920), (14, 22942140), (15, 21412664), (20, 16059498), (21, 15294760), (24, 13382915), (26, 12353460), (28, 11471070), (30, 10706332), (35, 9176856), (39, 8235640), (40, 8029749), (42, 7647380), (52, 6176730), (56, 5735535), (60, 5353166), (65, 4941384), (67, 4793880), (70, 4588428), (78, 4117820), (84, 3823690), (91, 3529560), (104, 3088365), (105, 3058952), (120, 2676583), (130, 2470692), (134, 2396940), (140, 2294214), (156, 2058910), (168, 1911845), (182, 1764780), (195, 1647128), (201, 1597960), (210, 1529476), (260, 1235346), (268, 1198470), (273, 1176520), (280, 1147107), (312, 1029455), (335, 958776), (364, 882390), (390, 823564), (402, 798980), (420, 764738), (439, 731640), (455, 705912), (469, 684840), (520, 617673), (536, 599235), (546, 588260), (670, 479388), (728, 441195), (780, 411782), (804, 399490), (840, 382369), (871, 368760), (878, 365820), (910, 352956), (938, 342420), (1005, 319592), (1092, 294130), (1317, 243880), (1340, 239694), (1365, 235304), (1407, 228280), (1560, 205891), (1608, 199745), (1742, 184380), (1756, 182910), (1820, 176478), (1876, 171210), (2010, 159796), (2184, 147065), (2195, 146328), (2345, 136968), (2613, 122920), (2634, 121940), (2680, 119847), (2730, 117652), (2814, 114140), (3073, 104520), (3484, 92190), (3512, 91455), (3640, 88239), (3752, 85605), (4020, 79898), (4355, 73752), (4390, 73164), (4690, 68484), (5226, 61460), (5268, 60970), (5460, 58826), (5628, 57070), (5707, 56280), (6097, 52680), (6146, 52260), (6585, 48776), (6968, 46095), (7035, 45656), (8040, 39949), (8710, 36876), (8780, 36582), (9219, 34840), (9380, 34242), (10452, 30730), (10536, 30485), (10920, 29413), (11256, 28535), (11414, 28140), (12194, 26340), (12292, 26130), (13065, 24584), (13170, 24388), (14070, 22828), (15365, 20904), (17121, 18760), (17420, 18438), (17560, 18291)]