31003960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{547}}^1$

素因数の和:680

約数の個数: 64

約数和(自身を含む): 75952800

約数和(自身を除く): 44948840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 520, 545, 547, 872, 1090, 1094, 1417, 2180, 2188, 2735, 2834, 4360, 4376, 5470, 5668, 7085, 7111, 10940, 11336, 14170, 14222, 21880, 28340, 28444, 35555, 56680, 56888, 59623, 71110, 119246, 142220, 238492, 284440, 298115, 476984, 596230, 775099, 1192460, 1550198, 2384920, 3100396, 3875495, 6200792, 7750990, 15501980, 31003960]

約数ペア:

[(1, 31003960), (2, 15501980), (4, 7750990), (5, 6200792), (8, 3875495), (10, 3100396), (13, 2384920), (20, 1550198), (26, 1192460), (40, 775099), (52, 596230), (65, 476984), (104, 298115), (109, 284440), (130, 238492), (218, 142220), (260, 119246), (436, 71110), (520, 59623), (545, 56888), (547, 56680), (872, 35555), (1090, 28444), (1094, 28340), (1417, 21880), (2180, 14222), (2188, 14170), (2735, 11336), (2834, 10940), (4360, 7111), (4376, 7085), (5470, 5668)]