1640704920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{192571}}^1$

素因数の和:192656

約数の個数: 64

約数和(自身を含む): 4991466240

約数和(自身を除く): 3350761320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 192571, 385142, 577713, 770284, 962855, 1155426, 1540568, 1925710, 2310852, 2888565, 3851420, 4621704, 5777130, 7702840, 11554260, 13672541, 23108520, 27345082, 41017623, 54690164, 68362705, 82035246, 109380328, 136725410, 164070492, 205088115, 273450820, 328140984, 410176230, 546901640, 820352460, 1640704920]

約数ペア:

[(1, 1640704920), (2, 820352460), (3, 546901640), (4, 410176230), (5, 328140984), (6, 273450820), (8, 205088115), (10, 164070492), (12, 136725410), (15, 109380328), (20, 82035246), (24, 68362705), (30, 54690164), (40, 41017623), (60, 27345082), (71, 23108520), (120, 13672541), (142, 11554260), (213, 7702840), (284, 5777130), (355, 4621704), (426, 3851420), (568, 2888565), (710, 2310852), (852, 1925710), (1065, 1540568), (1420, 1155426), (1704, 962855), (2130, 770284), (2840, 577713), (4260, 385142), (8520, 192571)]