81156640

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29837}}^1$

素因数の和:29869

約数の個数: 48

約数和(自身を含む): 203017752

約数和(自身を除く): 121861112

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 29837, 59674, 119348, 149185, 238696, 298370, 477392, 507229, 596740, 954784, 1014458, 1193480, 2028916, 2386960, 2536145, 4057832, 4773920, 5072290, 8115664, 10144580, 16231328, 20289160, 40578320, 81156640]

約数ペア:

[(1, 81156640), (2, 40578320), (4, 20289160), (5, 16231328), (8, 10144580), (10, 8115664), (16, 5072290), (17, 4773920), (20, 4057832), (32, 2536145), (34, 2386960), (40, 2028916), (68, 1193480), (80, 1014458), (85, 954784), (136, 596740), (160, 507229), (170, 477392), (272, 298370), (340, 238696), (544, 149185), (680, 119348), (1360, 59674), (2720, 29837)]