18466840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{653}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 48029760

約数和(自身を除く): 29562920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 653, 707, 808, 1010, 1306, 1414, 2020, 2612, 2828, 3265, 3535, 4040, 4571, 5224, 5656, 6530, 7070, 9142, 13060, 14140, 18284, 22855, 26120, 28280, 36568, 45710, 65953, 91420, 131906, 182840, 263812, 329765, 461671, 527624, 659530, 923342, 1319060, 1846684, 2308355, 2638120, 3693368, 4616710, 9233420, 18466840]

約数ペア:

[(1, 18466840), (2, 9233420), (4, 4616710), (5, 3693368), (7, 2638120), (8, 2308355), (10, 1846684), (14, 1319060), (20, 923342), (28, 659530), (35, 527624), (40, 461671), (56, 329765), (70, 263812), (101, 182840), (140, 131906), (202, 91420), (280, 65953), (404, 45710), (505, 36568), (653, 28280), (707, 26120), (808, 22855), (1010, 18284), (1306, 14140), (1414, 13060), (2020, 9142), (2612, 7070), (2828, 6530), (3265, 5656), (3535, 5224), (4040, 4571)]