18731020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12163}}^1$

素因数の和:12190

約数の個数: 48

約数和(自身を含む): 49045248

約数和(自身を除く): 30314228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12163, 24326, 48652, 60815, 85141, 121630, 133793, 170282, 243260, 267586, 340564, 425705, 535172, 668965, 851410, 936551, 1337930, 1702820, 1873102, 2675860, 3746204, 4682755, 9365510, 18731020]

約数ペア:

[(1, 18731020), (2, 9365510), (4, 4682755), (5, 3746204), (7, 2675860), (10, 1873102), (11, 1702820), (14, 1337930), (20, 936551), (22, 851410), (28, 668965), (35, 535172), (44, 425705), (55, 340564), (70, 267586), (77, 243260), (110, 170282), (140, 133793), (154, 121630), (220, 85141), (308, 60815), (385, 48652), (770, 24326), (1540, 12163)]