279904300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1549}}^1$

素因数の和:1715

約数の個数: 72

約数和(自身を含む): 659246000

約数和(自身を除く): 379341700

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 139, 260, 278, 325, 556, 650, 695, 1300, 1390, 1549, 1807, 2780, 3098, 3475, 3614, 6196, 6950, 7228, 7745, 9035, 13900, 15490, 18070, 20137, 30980, 36140, 38725, 40274, 45175, 77450, 80548, 90350, 100685, 154900, 180700, 201370, 215311, 402740, 430622, 503425, 861244, 1006850, 1076555, 2013700, 2153110, 2799043, 4306220, 5382775, 5598086, 10765550, 11196172, 13995215, 21531100, 27990430, 55980860, 69976075, 139952150, 279904300]

約数ペア:

[(1, 279904300), (2, 139952150), (4, 69976075), (5, 55980860), (10, 27990430), (13, 21531100), (20, 13995215), (25, 11196172), (26, 10765550), (50, 5598086), (52, 5382775), (65, 4306220), (100, 2799043), (130, 2153110), (139, 2013700), (260, 1076555), (278, 1006850), (325, 861244), (556, 503425), (650, 430622), (695, 402740), (1300, 215311), (1390, 201370), (1549, 180700), (1807, 154900), (2780, 100685), (3098, 90350), (3475, 80548), (3614, 77450), (6196, 45175), (6950, 40274), (7228, 38725), (7745, 36140), (9035, 30980), (13900, 20137), (15490, 18070)]