12641800

素因数分解:

$2^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{2039}}^1$

素因数の和:2086

約数の個数: 48

約数和(自身を含む): 30355200

約数和(自身を除く): 17713400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 155, 200, 248, 310, 620, 775, 1240, 1550, 2039, 3100, 4078, 6200, 8156, 10195, 16312, 20390, 40780, 50975, 63209, 81560, 101950, 126418, 203900, 252836, 316045, 407800, 505672, 632090, 1264180, 1580225, 2528360, 3160450, 6320900, 12641800]

約数ペア:

[(1, 12641800), (2, 6320900), (4, 3160450), (5, 2528360), (8, 1580225), (10, 1264180), (20, 632090), (25, 505672), (31, 407800), (40, 316045), (50, 252836), (62, 203900), (100, 126418), (124, 101950), (155, 81560), (200, 63209), (248, 50975), (310, 40780), (620, 20390), (775, 16312), (1240, 10195), (1550, 8156), (2039, 6200), (3100, 4078)]