20315100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{5209}}^1$

素因数の和:5239

約数の個数: 72

約数和(自身を含む): 63311920

約数和(自身を除く): 42996820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 5209, 10418, 15627, 20836, 26045, 31254, 52090, 62508, 67717, 78135, 104180, 130225, 135434, 156270, 203151, 260450, 270868, 312540, 338585, 390675, 406302, 520900, 677170, 781350, 812604, 1015755, 1354340, 1562700, 1692925, 2031510, 3385850, 4063020, 5078775, 6771700, 10157550, 20315100]

約数ペア:

[(1, 20315100), (2, 10157550), (3, 6771700), (4, 5078775), (5, 4063020), (6, 3385850), (10, 2031510), (12, 1692925), (13, 1562700), (15, 1354340), (20, 1015755), (25, 812604), (26, 781350), (30, 677170), (39, 520900), (50, 406302), (52, 390675), (60, 338585), (65, 312540), (75, 270868), (78, 260450), (100, 203151), (130, 156270), (150, 135434), (156, 130225), (195, 104180), (260, 78135), (300, 67717), (325, 62508), (390, 52090), (650, 31254), (780, 26045), (975, 20836), (1300, 15627), (1950, 10418), (3900, 5209)]