30590780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{659}}^1$

素因数の和:890

約数の個数: 48

約数和(自身を含む): 70519680

約数和(自身を除く): 39928900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 659, 844, 1055, 1318, 2110, 2321, 2636, 3295, 4220, 4642, 6590, 7249, 9284, 11605, 13180, 14498, 23210, 28996, 36245, 46420, 72490, 139049, 144980, 278098, 556196, 695245, 1390490, 1529539, 2780980, 3059078, 6118156, 7647695, 15295390, 30590780]

約数ペア:

[(1, 30590780), (2, 15295390), (4, 7647695), (5, 6118156), (10, 3059078), (11, 2780980), (20, 1529539), (22, 1390490), (44, 695245), (55, 556196), (110, 278098), (211, 144980), (220, 139049), (422, 72490), (659, 46420), (844, 36245), (1055, 28996), (1318, 23210), (2110, 14498), (2321, 13180), (2636, 11605), (3295, 9284), (4220, 7249), (4642, 6590)]