31262140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 82131840

約数和(自身を除く): 50869700

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 89, 91, 130, 140, 178, 182, 193, 260, 356, 364, 386, 445, 455, 623, 772, 890, 910, 965, 1157, 1246, 1351, 1780, 1820, 1930, 2314, 2492, 2509, 2702, 3115, 3860, 4628, 5018, 5404, 5785, 6230, 6755, 8099, 10036, 11570, 12460, 12545, 13510, 16198, 17177, 17563, 23140, 25090, 27020, 32396, 34354, 35126, 40495, 50180, 68708, 70252, 80990, 85885, 87815, 120239, 161980, 171770, 175630, 223301, 240478, 343540, 351260, 446602, 480956, 601195, 893204, 1116505, 1202390, 1563107, 2233010, 2404780, 3126214, 4466020, 6252428, 7815535, 15631070, 31262140]

約数ペア:

[(1, 31262140), (2, 15631070), (4, 7815535), (5, 6252428), (7, 4466020), (10, 3126214), (13, 2404780), (14, 2233010), (20, 1563107), (26, 1202390), (28, 1116505), (35, 893204), (52, 601195), (65, 480956), (70, 446602), (89, 351260), (91, 343540), (130, 240478), (140, 223301), (178, 175630), (182, 171770), (193, 161980), (260, 120239), (356, 87815), (364, 85885), (386, 80990), (445, 70252), (455, 68708), (623, 50180), (772, 40495), (890, 35126), (910, 34354), (965, 32396), (1157, 27020), (1246, 25090), (1351, 23140), (1780, 17563), (1820, 17177), (1930, 16198), (2314, 13510), (2492, 12545), (2509, 12460), (2702, 11570), (3115, 10036), (3860, 8099), (4628, 6755), (5018, 6230), (5404, 5785)]