31315700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1$

素因数の和:166

約数の個数: 108

約数和(自身を含む): 78627780

約数和(自身を除く): 47312080

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 109, 130, 169, 170, 218, 221, 260, 325, 338, 340, 425, 436, 442, 545, 650, 676, 845, 850, 884, 1090, 1105, 1300, 1417, 1690, 1700, 1853, 2180, 2210, 2725, 2834, 2873, 3380, 3706, 4225, 4420, 5450, 5525, 5668, 5746, 7085, 7412, 8450, 9265, 10900, 11050, 11492, 14170, 14365, 16900, 18421, 18530, 22100, 24089, 28340, 28730, 35425, 36842, 37060, 46325, 48178, 57460, 70850, 71825, 73684, 92105, 92650, 96356, 120445, 141700, 143650, 184210, 185300, 240890, 287300, 313157, 368420, 460525, 481780, 602225, 626314, 921050, 1204450, 1252628, 1565785, 1842100, 2408900, 3131570, 6263140, 7828925, 15657850, 31315700]

約数ペア:

[(1, 31315700), (2, 15657850), (4, 7828925), (5, 6263140), (10, 3131570), (13, 2408900), (17, 1842100), (20, 1565785), (25, 1252628), (26, 1204450), (34, 921050), (50, 626314), (52, 602225), (65, 481780), (68, 460525), (85, 368420), (100, 313157), (109, 287300), (130, 240890), (169, 185300), (170, 184210), (218, 143650), (221, 141700), (260, 120445), (325, 96356), (338, 92650), (340, 92105), (425, 73684), (436, 71825), (442, 70850), (545, 57460), (650, 48178), (676, 46325), (845, 37060), (850, 36842), (884, 35425), (1090, 28730), (1105, 28340), (1300, 24089), (1417, 22100), (1690, 18530), (1700, 18421), (1853, 16900), (2180, 14365), (2210, 14170), (2725, 11492), (2834, 11050), (2873, 10900), (3380, 9265), (3706, 8450), (4225, 7412), (4420, 7085), (5450, 5746), (5525, 5668)]