12989960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 30697920

約数和(自身を除く): 17707960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 67, 74, 131, 134, 148, 185, 262, 268, 296, 335, 370, 524, 536, 655, 670, 740, 1048, 1310, 1340, 1480, 2479, 2620, 2680, 4847, 4958, 5240, 8777, 9694, 9916, 12395, 17554, 19388, 19832, 24235, 24790, 35108, 38776, 43885, 48470, 49580, 70216, 87770, 96940, 99160, 175540, 193880, 324749, 351080, 649498, 1298996, 1623745, 2597992, 3247490, 6494980, 12989960]

約数ペア:

[(1, 12989960), (2, 6494980), (4, 3247490), (5, 2597992), (8, 1623745), (10, 1298996), (20, 649498), (37, 351080), (40, 324749), (67, 193880), (74, 175540), (131, 99160), (134, 96940), (148, 87770), (185, 70216), (262, 49580), (268, 48470), (296, 43885), (335, 38776), (370, 35108), (524, 24790), (536, 24235), (655, 19832), (670, 19388), (740, 17554), (1048, 12395), (1310, 9916), (1340, 9694), (1480, 8777), (2479, 5240), (2620, 4958), (2680, 4847)]