31684120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 79714800

約数和(自身を除く): 48030680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 109, 130, 169, 172, 215, 218, 260, 338, 344, 430, 436, 520, 545, 559, 676, 845, 860, 872, 1090, 1118, 1352, 1417, 1690, 1720, 2180, 2236, 2795, 2834, 3380, 4360, 4472, 4687, 5590, 5668, 6760, 7085, 7267, 9374, 11180, 11336, 14170, 14534, 18421, 18748, 22360, 23435, 28340, 29068, 36335, 36842, 37496, 46870, 56680, 58136, 60931, 72670, 73684, 92105, 93740, 121862, 145340, 147368, 184210, 187480, 243724, 290680, 304655, 368420, 487448, 609310, 736840, 792103, 1218620, 1584206, 2437240, 3168412, 3960515, 6336824, 7921030, 15842060, 31684120]

約数ペア:

[(1, 31684120), (2, 15842060), (4, 7921030), (5, 6336824), (8, 3960515), (10, 3168412), (13, 2437240), (20, 1584206), (26, 1218620), (40, 792103), (43, 736840), (52, 609310), (65, 487448), (86, 368420), (104, 304655), (109, 290680), (130, 243724), (169, 187480), (172, 184210), (215, 147368), (218, 145340), (260, 121862), (338, 93740), (344, 92105), (430, 73684), (436, 72670), (520, 60931), (545, 58136), (559, 56680), (676, 46870), (845, 37496), (860, 36842), (872, 36335), (1090, 29068), (1118, 28340), (1352, 23435), (1417, 22360), (1690, 18748), (1720, 18421), (2180, 14534), (2236, 14170), (2795, 11336), (2834, 11180), (3380, 9374), (4360, 7267), (4472, 7085), (4687, 6760), (5590, 5668)]