18572720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7489}}^1$

素因数の和:7533

約数の個数: 40

約数和(自身を含む): 44580480

約数和(自身を除く): 26007760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7489, 14978, 29956, 37445, 59912, 74890, 119824, 149780, 232159, 299560, 464318, 599120, 928636, 1160795, 1857272, 2321590, 3714544, 4643180, 9286360, 18572720]

約数ペア:

[(1, 18572720), (2, 9286360), (4, 4643180), (5, 3714544), (8, 2321590), (10, 1857272), (16, 1160795), (20, 928636), (31, 599120), (40, 464318), (62, 299560), (80, 232159), (124, 149780), (155, 119824), (248, 74890), (310, 59912), (496, 37445), (620, 29956), (1240, 14978), (2480, 7489)]