201028750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 80

約数和(自身を含む): 413305200

約数和(自身を除く): 212276450

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 125, 130, 139, 178, 250, 278, 325, 445, 625, 650, 695, 890, 1157, 1250, 1390, 1625, 1807, 2225, 2314, 3250, 3475, 3614, 4450, 5785, 6950, 8125, 9035, 11125, 11570, 12371, 16250, 17375, 18070, 22250, 24742, 28925, 34750, 45175, 55625, 57850, 61855, 86875, 90350, 111250, 123710, 144625, 160823, 173750, 225875, 289250, 309275, 321646, 451750, 618550, 723125, 804115, 1129375, 1446250, 1546375, 1608230, 2258750, 3092750, 4020575, 7731875, 8041150, 15463750, 20102875, 40205750, 100514375, 201028750]

約数ペア:

[(1, 201028750), (2, 100514375), (5, 40205750), (10, 20102875), (13, 15463750), (25, 8041150), (26, 7731875), (50, 4020575), (65, 3092750), (89, 2258750), (125, 1608230), (130, 1546375), (139, 1446250), (178, 1129375), (250, 804115), (278, 723125), (325, 618550), (445, 451750), (625, 321646), (650, 309275), (695, 289250), (890, 225875), (1157, 173750), (1250, 160823), (1390, 144625), (1625, 123710), (1807, 111250), (2225, 90350), (2314, 86875), (3250, 61855), (3475, 57850), (3614, 55625), (4450, 45175), (5785, 34750), (6950, 28925), (8125, 24742), (9035, 22250), (11125, 18070), (11570, 17375), (12371, 16250)]