19487440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:149

約数の個数: 160

約数和(自身を含む): 57853440

約数和(自身を除く): 38366000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 80, 85, 89, 92, 112, 115, 119, 136, 140, 161, 170, 178, 184, 230, 238, 272, 280, 322, 340, 356, 368, 391, 445, 460, 476, 560, 595, 623, 644, 680, 712, 782, 805, 890, 920, 952, 1190, 1246, 1288, 1360, 1424, 1513, 1564, 1610, 1780, 1840, 1904, 1955, 2047, 2380, 2492, 2576, 2737, 3026, 3115, 3128, 3220, 3560, 3910, 4094, 4760, 4984, 5474, 6052, 6230, 6256, 6440, 7120, 7565, 7820, 8188, 9520, 9968, 10235, 10591, 10948, 12104, 12460, 12880, 13685, 14329, 15130, 15640, 16376, 20470, 21182, 21896, 24208, 24920, 27370, 28658, 30260, 31280, 32752, 34799, 40940, 42364, 43792, 49840, 52955, 54740, 57316, 60520, 69598, 71645, 81880, 84728, 105910, 109480, 114632, 121040, 139196, 143290, 163760, 169456, 173995, 211820, 218960, 229264, 243593, 278392, 286580, 347990, 423640, 487186, 556784, 573160, 695980, 847280, 974372, 1146320, 1217965, 1391960, 1948744, 2435930, 2783920, 3897488, 4871860, 9743720, 19487440]

約数ペア:

[(1, 19487440), (2, 9743720), (4, 4871860), (5, 3897488), (7, 2783920), (8, 2435930), (10, 1948744), (14, 1391960), (16, 1217965), (17, 1146320), (20, 974372), (23, 847280), (28, 695980), (34, 573160), (35, 556784), (40, 487186), (46, 423640), (56, 347990), (68, 286580), (70, 278392), (80, 243593), (85, 229264), (89, 218960), (92, 211820), (112, 173995), (115, 169456), (119, 163760), (136, 143290), (140, 139196), (161, 121040), (170, 114632), (178, 109480), (184, 105910), (230, 84728), (238, 81880), (272, 71645), (280, 69598), (322, 60520), (340, 57316), (356, 54740), (368, 52955), (391, 49840), (445, 43792), (460, 42364), (476, 40940), (560, 34799), (595, 32752), (623, 31280), (644, 30260), (680, 28658), (712, 27370), (782, 24920), (805, 24208), (890, 21896), (920, 21182), (952, 20470), (1190, 16376), (1246, 15640), (1288, 15130), (1360, 14329), (1424, 13685), (1513, 12880), (1564, 12460), (1610, 12104), (1780, 10948), (1840, 10591), (1904, 10235), (1955, 9968), (2047, 9520), (2380, 8188), (2492, 7820), (2576, 7565), (2737, 7120), (3026, 6440), (3115, 6256), (3128, 6230), (3220, 6052), (3560, 5474), (3910, 4984), (4094, 4760)]