31102760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 78265440

約数和(自身を除く): 47162680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 107, 130, 169, 172, 214, 215, 260, 338, 344, 428, 430, 520, 535, 559, 676, 845, 856, 860, 1070, 1118, 1352, 1391, 1690, 1720, 2140, 2236, 2782, 2795, 3380, 4280, 4472, 4601, 5564, 5590, 6760, 6955, 7267, 9202, 11128, 11180, 13910, 14534, 18083, 18404, 22360, 23005, 27820, 29068, 36166, 36335, 36808, 46010, 55640, 58136, 59813, 72332, 72670, 90415, 92020, 119626, 144664, 145340, 180830, 184040, 239252, 290680, 299065, 361660, 478504, 598130, 723320, 777569, 1196260, 1555138, 2392520, 3110276, 3887845, 6220552, 7775690, 15551380, 31102760]

約数ペア:

[(1, 31102760), (2, 15551380), (4, 7775690), (5, 6220552), (8, 3887845), (10, 3110276), (13, 2392520), (20, 1555138), (26, 1196260), (40, 777569), (43, 723320), (52, 598130), (65, 478504), (86, 361660), (104, 299065), (107, 290680), (130, 239252), (169, 184040), (172, 180830), (214, 145340), (215, 144664), (260, 119626), (338, 92020), (344, 90415), (428, 72670), (430, 72332), (520, 59813), (535, 58136), (559, 55640), (676, 46010), (845, 36808), (856, 36335), (860, 36166), (1070, 29068), (1118, 27820), (1352, 23005), (1391, 22360), (1690, 18404), (1720, 18083), (2140, 14534), (2236, 13910), (2782, 11180), (2795, 11128), (3380, 9202), (4280, 7267), (4472, 6955), (4601, 6760), (5564, 5590)]