40205750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 82555200

約数和(自身を除く): 42349450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 125, 130, 139, 178, 250, 278, 325, 445, 650, 695, 890, 1157, 1390, 1625, 1807, 2225, 2314, 3250, 3475, 3614, 4450, 5785, 6950, 9035, 11125, 11570, 12371, 17375, 18070, 22250, 24742, 28925, 34750, 45175, 57850, 61855, 90350, 123710, 144625, 160823, 225875, 289250, 309275, 321646, 451750, 618550, 804115, 1546375, 1608230, 3092750, 4020575, 8041150, 20102875, 40205750]

約数ペア:

[(1, 40205750), (2, 20102875), (5, 8041150), (10, 4020575), (13, 3092750), (25, 1608230), (26, 1546375), (50, 804115), (65, 618550), (89, 451750), (125, 321646), (130, 309275), (139, 289250), (178, 225875), (250, 160823), (278, 144625), (325, 123710), (445, 90350), (650, 61855), (695, 57850), (890, 45175), (1157, 34750), (1390, 28925), (1625, 24742), (1807, 22250), (2225, 18070), (2314, 17375), (3250, 12371), (3475, 11570), (3614, 11125), (4450, 9035), (5785, 6950)]