18125940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 58705920

約数和(自身を除く): 40579980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 103, 105, 140, 206, 210, 309, 412, 419, 420, 515, 618, 721, 838, 1030, 1236, 1257, 1442, 1545, 1676, 2060, 2095, 2163, 2514, 2884, 2933, 3090, 3605, 4190, 4326, 5028, 5866, 6180, 6285, 7210, 8380, 8652, 8799, 10815, 11732, 12570, 14420, 14665, 17598, 21630, 25140, 29330, 35196, 43157, 43260, 43995, 58660, 86314, 87990, 129471, 172628, 175980, 215785, 258942, 302099, 431570, 517884, 604198, 647355, 863140, 906297, 1208396, 1294710, 1510495, 1812594, 2589420, 3020990, 3625188, 4531485, 6041980, 9062970, 18125940]

約数ペア:

[(1, 18125940), (2, 9062970), (3, 6041980), (4, 4531485), (5, 3625188), (6, 3020990), (7, 2589420), (10, 1812594), (12, 1510495), (14, 1294710), (15, 1208396), (20, 906297), (21, 863140), (28, 647355), (30, 604198), (35, 517884), (42, 431570), (60, 302099), (70, 258942), (84, 215785), (103, 175980), (105, 172628), (140, 129471), (206, 87990), (210, 86314), (309, 58660), (412, 43995), (419, 43260), (420, 43157), (515, 35196), (618, 29330), (721, 25140), (838, 21630), (1030, 17598), (1236, 14665), (1257, 14420), (1442, 12570), (1545, 11732), (1676, 10815), (2060, 8799), (2095, 8652), (2163, 8380), (2514, 7210), (2884, 6285), (2933, 6180), (3090, 5866), (3605, 5028), (4190, 4326)]