69793340

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 149882880

約数和(自身を除く): 80089540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 163, 271, 316, 326, 395, 542, 652, 790, 815, 1084, 1355, 1580, 1630, 2710, 3260, 5420, 12877, 21409, 25754, 42818, 44173, 51508, 64385, 85636, 88346, 107045, 128770, 176692, 214090, 220865, 257540, 428180, 441730, 883460, 3489667, 6979334, 13958668, 17448335, 34896670, 69793340]

約数ペア:

[(1, 69793340), (2, 34896670), (4, 17448335), (5, 13958668), (10, 6979334), (20, 3489667), (79, 883460), (158, 441730), (163, 428180), (271, 257540), (316, 220865), (326, 214090), (395, 176692), (542, 128770), (652, 107045), (790, 88346), (815, 85636), (1084, 64385), (1355, 51508), (1580, 44173), (1630, 42818), (2710, 25754), (3260, 21409), (5420, 12877)]