1490804840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{123821}}^1$

素因数の和:123882

約数の個数: 64

約数和(自身を含む): 3922680960

約数和(自身を除く): 2431876120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 860, 1204, 1505, 1720, 2408, 3010, 6020, 12040, 123821, 247642, 495284, 619105, 866747, 990568, 1238210, 1733494, 2476420, 3466988, 4333735, 4952840, 5324303, 6933976, 8667470, 10648606, 17334940, 21297212, 26621515, 34669880, 37270121, 42594424, 53243030, 74540242, 106486060, 149080484, 186350605, 212972120, 298160968, 372701210, 745402420, 1490804840]

約数ペア:

[(1, 1490804840), (2, 745402420), (4, 372701210), (5, 298160968), (7, 212972120), (8, 186350605), (10, 149080484), (14, 106486060), (20, 74540242), (28, 53243030), (35, 42594424), (40, 37270121), (43, 34669880), (56, 26621515), (70, 21297212), (86, 17334940), (140, 10648606), (172, 8667470), (215, 6933976), (280, 5324303), (301, 4952840), (344, 4333735), (430, 3466988), (602, 2476420), (860, 1733494), (1204, 1238210), (1505, 990568), (1720, 866747), (2408, 619105), (3010, 495284), (6020, 247642), (12040, 123821)]