259443660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{617723}}^1$

素因数の和:617742

約数の個数: 48

約数和(自身を含む): 830221056

約数和(自身を除く): 570777396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 617723, 1235446, 1853169, 2470892, 3088615, 3706338, 4324061, 6177230, 7412676, 8648122, 9265845, 12354460, 12972183, 17296244, 18531690, 21620305, 25944366, 37063380, 43240610, 51888732, 64860915, 86481220, 129721830, 259443660]

約数ペア:

[(1, 259443660), (2, 129721830), (3, 86481220), (4, 64860915), (5, 51888732), (6, 43240610), (7, 37063380), (10, 25944366), (12, 21620305), (14, 18531690), (15, 17296244), (20, 12972183), (21, 12354460), (28, 9265845), (30, 8648122), (35, 7412676), (42, 6177230), (60, 4324061), (70, 3706338), (84, 3088615), (105, 2470892), (140, 1853169), (210, 1235446), (420, 617723)]