64675325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 95827200

約数和(自身を除く): 31151875

約数列:

[1, 5, 11, 13, 25, 55, 65, 79, 143, 229, 275, 325, 395, 715, 869, 1027, 1145, 1975, 2519, 2977, 3575, 4345, 5135, 5725, 11297, 12595, 14885, 18091, 21725, 25675, 32747, 56485, 62975, 74425, 90455, 163735, 199001, 235183, 282425, 452275, 818675, 995005, 1175915, 2587013, 4975025, 5879575, 12935065, 64675325]

約数ペア:

[(1, 64675325), (5, 12935065), (11, 5879575), (13, 4975025), (25, 2587013), (55, 1175915), (65, 995005), (79, 818675), (143, 452275), (229, 282425), (275, 235183), (325, 199001), (395, 163735), (715, 90455), (869, 74425), (1027, 62975), (1145, 56485), (1975, 32747), (2519, 25675), (2977, 21725), (3575, 18091), (4345, 14885), (5135, 12595), (5725, 11297)]