13191720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{521}}^1$

素因数の和:746

約数の個数: 64

約数和(自身を含む): 39839040

約数和(自身を除く): 26647320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 211, 422, 521, 633, 844, 1042, 1055, 1266, 1563, 1688, 2084, 2110, 2532, 2605, 3126, 3165, 4168, 4220, 5064, 5210, 6252, 6330, 7815, 8440, 10420, 12504, 12660, 15630, 20840, 25320, 31260, 62520, 109931, 219862, 329793, 439724, 549655, 659586, 879448, 1099310, 1319172, 1648965, 2198620, 2638344, 3297930, 4397240, 6595860, 13191720]

約数ペア:

[(1, 13191720), (2, 6595860), (3, 4397240), (4, 3297930), (5, 2638344), (6, 2198620), (8, 1648965), (10, 1319172), (12, 1099310), (15, 879448), (20, 659586), (24, 549655), (30, 439724), (40, 329793), (60, 219862), (120, 109931), (211, 62520), (422, 31260), (521, 25320), (633, 20840), (844, 15630), (1042, 12660), (1055, 12504), (1266, 10420), (1563, 8440), (1688, 7815), (2084, 6330), (2110, 6252), (2532, 5210), (2605, 5064), (3126, 4220), (3165, 4168)]