255412920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{304063}}^1$

素因数の和:304084

約数の個数: 64

約数和(自身を含む): 875704320

約数和(自身を除く): 620291400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 304063, 608126, 912189, 1216252, 1520315, 1824378, 2128441, 2432504, 3040630, 3648756, 4256882, 4560945, 6081260, 6385323, 7297512, 8513764, 9121890, 10642205, 12162520, 12770646, 17027528, 18243780, 21284410, 25541292, 31926615, 36487560, 42568820, 51082584, 63853230, 85137640, 127706460, 255412920]

約数ペア:

[(1, 255412920), (2, 127706460), (3, 85137640), (4, 63853230), (5, 51082584), (6, 42568820), (7, 36487560), (8, 31926615), (10, 25541292), (12, 21284410), (14, 18243780), (15, 17027528), (20, 12770646), (21, 12162520), (24, 10642205), (28, 9121890), (30, 8513764), (35, 7297512), (40, 6385323), (42, 6081260), (56, 4560945), (60, 4256882), (70, 3648756), (84, 3040630), (105, 2432504), (120, 2128441), (140, 1824378), (168, 1520315), (210, 1216252), (280, 912189), (420, 608126), (840, 304063)]