311721120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6983}}^1$

素因数の和:7035

約数の個数: 144

約数和(自身を含む): 1098220032

約数和(自身を除く): 786498912

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 620, 720, 744, 930, 992, 1116, 1240, 1395, 1440, 1488, 1860, 2232, 2480, 2790, 2976, 3720, 4464, 4960, 5580, 6983, 7440, 8928, 11160, 13966, 14880, 20949, 22320, 27932, 34915, 41898, 44640, 55864, 62847, 69830, 83796, 104745, 111728, 125694, 139660, 167592, 209490, 216473, 223456, 251388, 279320, 314235, 335184, 418980, 432946, 502776, 558640, 628470, 649419, 670368, 837960, 865892, 1005552, 1082365, 1117280, 1256940, 1298838, 1675920, 1731784, 1948257, 2011104, 2164730, 2513880, 2597676, 3247095, 3351840, 3463568, 3896514, 4329460, 5027760, 5195352, 6494190, 6927136, 7793028, 8658920, 9741285, 10055520, 10390704, 12988380, 15586056, 17317840, 19482570, 20781408, 25976760, 31172112, 34635680, 38965140, 51953520, 62344224, 77930280, 103907040, 155860560, 311721120]

約数ペア:

[(1, 311721120), (2, 155860560), (3, 103907040), (4, 77930280), (5, 62344224), (6, 51953520), (8, 38965140), (9, 34635680), (10, 31172112), (12, 25976760), (15, 20781408), (16, 19482570), (18, 17317840), (20, 15586056), (24, 12988380), (30, 10390704), (31, 10055520), (32, 9741285), (36, 8658920), (40, 7793028), (45, 6927136), (48, 6494190), (60, 5195352), (62, 5027760), (72, 4329460), (80, 3896514), (90, 3463568), (93, 3351840), (96, 3247095), (120, 2597676), (124, 2513880), (144, 2164730), (155, 2011104), (160, 1948257), (180, 1731784), (186, 1675920), (240, 1298838), (248, 1256940), (279, 1117280), (288, 1082365), (310, 1005552), (360, 865892), (372, 837960), (465, 670368), (480, 649419), (496, 628470), (558, 558640), (620, 502776), (720, 432946), (744, 418980), (930, 335184), (992, 314235), (1116, 279320), (1240, 251388), (1395, 223456), (1440, 216473), (1488, 209490), (1860, 167592), (2232, 139660), (2480, 125694), (2790, 111728), (2976, 104745), (3720, 83796), (4464, 69830), (4960, 62847), (5580, 55864), (6983, 44640), (7440, 41898), (8928, 34915), (11160, 27932), (13966, 22320), (14880, 20949)]