31361720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1471}}^1$

素因数の和:1536

約数の個数: 64

約数和(自身を含む): 77898240

約数和(自身を除く): 46536520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1471, 1640, 2132, 2665, 2942, 4264, 5330, 5884, 7355, 10660, 11768, 14710, 19123, 21320, 29420, 38246, 58840, 60311, 76492, 95615, 120622, 152984, 191230, 241244, 301555, 382460, 482488, 603110, 764920, 784043, 1206220, 1568086, 2412440, 3136172, 3920215, 6272344, 7840430, 15680860, 31361720]

約数ペア:

[(1, 31361720), (2, 15680860), (4, 7840430), (5, 6272344), (8, 3920215), (10, 3136172), (13, 2412440), (20, 1568086), (26, 1206220), (40, 784043), (41, 764920), (52, 603110), (65, 482488), (82, 382460), (104, 301555), (130, 241244), (164, 191230), (205, 152984), (260, 120622), (328, 95615), (410, 76492), (520, 60311), (533, 58840), (820, 38246), (1066, 29420), (1471, 21320), (1640, 19123), (2132, 14710), (2665, 11768), (2942, 10660), (4264, 7355), (5330, 5884)]