138628920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:445

約数の個数: 128

約数和(自身を含む): 431101440

約数和(自身を除く): 292472520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 71, 106, 120, 142, 159, 212, 213, 265, 284, 307, 318, 355, 424, 426, 530, 568, 614, 636, 710, 795, 852, 921, 1060, 1065, 1228, 1272, 1420, 1535, 1590, 1704, 1842, 2120, 2130, 2456, 2840, 3070, 3180, 3684, 3763, 4260, 4605, 6140, 6360, 7368, 7526, 8520, 9210, 11289, 12280, 15052, 16271, 18420, 18815, 21797, 22578, 30104, 32542, 36840, 37630, 43594, 45156, 48813, 56445, 65084, 65391, 75260, 81355, 87188, 90312, 97626, 108985, 112890, 130168, 130782, 150520, 162710, 174376, 195252, 217970, 225780, 244065, 261564, 325420, 326955, 390504, 435940, 451560, 488130, 523128, 650840, 653910, 871880, 976260, 1155241, 1307820, 1952520, 2310482, 2615640, 3465723, 4620964, 5776205, 6931446, 9241928, 11552410, 13862892, 17328615, 23104820, 27725784, 34657230, 46209640, 69314460, 138628920]

約数ペア:

[(1, 138628920), (2, 69314460), (3, 46209640), (4, 34657230), (5, 27725784), (6, 23104820), (8, 17328615), (10, 13862892), (12, 11552410), (15, 9241928), (20, 6931446), (24, 5776205), (30, 4620964), (40, 3465723), (53, 2615640), (60, 2310482), (71, 1952520), (106, 1307820), (120, 1155241), (142, 976260), (159, 871880), (212, 653910), (213, 650840), (265, 523128), (284, 488130), (307, 451560), (318, 435940), (355, 390504), (424, 326955), (426, 325420), (530, 261564), (568, 244065), (614, 225780), (636, 217970), (710, 195252), (795, 174376), (852, 162710), (921, 150520), (1060, 130782), (1065, 130168), (1228, 112890), (1272, 108985), (1420, 97626), (1535, 90312), (1590, 87188), (1704, 81355), (1842, 75260), (2120, 65391), (2130, 65084), (2456, 56445), (2840, 48813), (3070, 45156), (3180, 43594), (3684, 37630), (3763, 36840), (4260, 32542), (4605, 30104), (6140, 22578), (6360, 21797), (7368, 18815), (7526, 18420), (8520, 16271), (9210, 15052), (11289, 12280)]