2180940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 6171648

約数和(自身を除く): 3990708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 223, 326, 446, 489, 652, 669, 815, 892, 978, 1115, 1338, 1630, 1956, 2230, 2445, 2676, 3260, 3345, 4460, 4890, 6690, 9780, 13380, 36349, 72698, 109047, 145396, 181745, 218094, 363490, 436188, 545235, 726980, 1090470, 2180940]

約数ペア:

[(1, 2180940), (2, 1090470), (3, 726980), (4, 545235), (5, 436188), (6, 363490), (10, 218094), (12, 181745), (15, 145396), (20, 109047), (30, 72698), (60, 36349), (163, 13380), (223, 9780), (326, 6690), (446, 4890), (489, 4460), (652, 3345), (669, 3260), (815, 2676), (892, 2445), (978, 2230), (1115, 1956), (1338, 1630)]