400653960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{28057}}^1$

素因数の和:28095

約数の個数: 128

約数和(自身を含む): 1454526720

約数和(自身を除く): 1053872760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 51, 56, 60, 68, 70, 84, 85, 102, 105, 119, 120, 136, 140, 168, 170, 204, 210, 238, 255, 280, 340, 357, 408, 420, 476, 510, 595, 680, 714, 840, 952, 1020, 1190, 1428, 1785, 2040, 2380, 2856, 3570, 4760, 7140, 14280, 28057, 56114, 84171, 112228, 140285, 168342, 196399, 224456, 280570, 336684, 392798, 420855, 476969, 561140, 589197, 673368, 785596, 841710, 953938, 981995, 1122280, 1178394, 1430907, 1571192, 1683420, 1907876, 1963990, 2356788, 2384845, 2861814, 2945985, 3338783, 3366840, 3815752, 3927980, 4713576, 4769690, 5723628, 5891970, 6677566, 7154535, 7855960, 9539380, 10016349, 11447256, 11783940, 13355132, 14309070, 16693915, 19078760, 20032698, 23567880, 26710264, 28618140, 33387830, 40065396, 50081745, 57236280, 66775660, 80130792, 100163490, 133551320, 200326980, 400653960]

約数ペア:

[(1, 400653960), (2, 200326980), (3, 133551320), (4, 100163490), (5, 80130792), (6, 66775660), (7, 57236280), (8, 50081745), (10, 40065396), (12, 33387830), (14, 28618140), (15, 26710264), (17, 23567880), (20, 20032698), (21, 19078760), (24, 16693915), (28, 14309070), (30, 13355132), (34, 11783940), (35, 11447256), (40, 10016349), (42, 9539380), (51, 7855960), (56, 7154535), (60, 6677566), (68, 5891970), (70, 5723628), (84, 4769690), (85, 4713576), (102, 3927980), (105, 3815752), (119, 3366840), (120, 3338783), (136, 2945985), (140, 2861814), (168, 2384845), (170, 2356788), (204, 1963990), (210, 1907876), (238, 1683420), (255, 1571192), (280, 1430907), (340, 1178394), (357, 1122280), (408, 981995), (420, 953938), (476, 841710), (510, 785596), (595, 673368), (680, 589197), (714, 561140), (840, 476969), (952, 420855), (1020, 392798), (1190, 336684), (1428, 280570), (1785, 224456), (2040, 196399), (2380, 168342), (2856, 140285), (3570, 112228), (4760, 84171), (7140, 56114), (14280, 28057)]