320420750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5189}}^1$

素因数の和:5238

約数の個数: 64

約数和(自身を含む): 680097600

約数和(自身を除く): 359676850

約数列:

[1, 2, 5, 10, 13, 19, 25, 26, 38, 50, 65, 95, 125, 130, 190, 247, 250, 325, 475, 494, 650, 950, 1235, 1625, 2375, 2470, 3250, 4750, 5189, 6175, 10378, 12350, 25945, 30875, 51890, 61750, 67457, 98591, 129725, 134914, 197182, 259450, 337285, 492955, 648625, 674570, 985910, 1281683, 1297250, 1686425, 2464775, 2563366, 3372850, 4929550, 6408415, 8432125, 12323875, 12816830, 16864250, 24647750, 32042075, 64084150, 160210375, 320420750]

約数ペア:

[(1, 320420750), (2, 160210375), (5, 64084150), (10, 32042075), (13, 24647750), (19, 16864250), (25, 12816830), (26, 12323875), (38, 8432125), (50, 6408415), (65, 4929550), (95, 3372850), (125, 2563366), (130, 2464775), (190, 1686425), (247, 1297250), (250, 1281683), (325, 985910), (475, 674570), (494, 648625), (650, 492955), (950, 337285), (1235, 259450), (1625, 197182), (2375, 134914), (2470, 129725), (3250, 98591), (4750, 67457), (5189, 61750), (6175, 51890), (10378, 30875), (12350, 25945)]