51006400

素因数分解:

$2^6\times 5^2\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:542

約数の個数: 84

約数和(自身を含む): 127558800

約数和(自身を除く): 76552400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 71, 80, 100, 142, 160, 200, 284, 320, 355, 400, 449, 568, 710, 800, 898, 1136, 1420, 1600, 1775, 1796, 2245, 2272, 2840, 3550, 3592, 4490, 4544, 5680, 7100, 7184, 8980, 11225, 11360, 14200, 14368, 17960, 22450, 22720, 28400, 28736, 31879, 35920, 44900, 56800, 63758, 71840, 89800, 113600, 127516, 143680, 159395, 179600, 255032, 318790, 359200, 510064, 637580, 718400, 796975, 1020128, 1275160, 1593950, 2040256, 2550320, 3187900, 5100640, 6375800, 10201280, 12751600, 25503200, 51006400]

約数ペア:

[(1, 51006400), (2, 25503200), (4, 12751600), (5, 10201280), (8, 6375800), (10, 5100640), (16, 3187900), (20, 2550320), (25, 2040256), (32, 1593950), (40, 1275160), (50, 1020128), (64, 796975), (71, 718400), (80, 637580), (100, 510064), (142, 359200), (160, 318790), (200, 255032), (284, 179600), (320, 159395), (355, 143680), (400, 127516), (449, 113600), (568, 89800), (710, 71840), (800, 63758), (898, 56800), (1136, 44900), (1420, 35920), (1600, 31879), (1775, 28736), (1796, 28400), (2245, 22720), (2272, 22450), (2840, 17960), (3550, 14368), (3592, 14200), (4490, 11360), (4544, 11225), (5680, 8980), (7100, 7184)]