20401560

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56671}}^1$

素因数の和:56688

約数の個数: 48

約数和(自身を含む): 66306240

約数和(自身を除く): 45904680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56671, 113342, 170013, 226684, 283355, 340026, 453368, 510039, 566710, 680052, 850065, 1020078, 1133420, 1360104, 1700130, 2040156, 2266840, 2550195, 3400260, 4080312, 5100390, 6800520, 10200780, 20401560]

約数ペア:

[(1, 20401560), (2, 10200780), (3, 6800520), (4, 5100390), (5, 4080312), (6, 3400260), (8, 2550195), (9, 2266840), (10, 2040156), (12, 1700130), (15, 1360104), (18, 1133420), (20, 1020078), (24, 850065), (30, 680052), (36, 566710), (40, 510039), (45, 453368), (60, 340026), (72, 283355), (90, 226684), (120, 170013), (180, 113342), (360, 56671)]