210658640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:708

約数の個数: 80

約数和(自身を含む): 509538816

約数和(自身を除く): 298880176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 173, 248, 310, 346, 491, 496, 620, 692, 865, 982, 1240, 1384, 1730, 1964, 2455, 2480, 2768, 3460, 3928, 4910, 5363, 6920, 7856, 9820, 10726, 13840, 15221, 19640, 21452, 26815, 30442, 39280, 42904, 53630, 60884, 76105, 84943, 85808, 107260, 121768, 152210, 169886, 214520, 243536, 304420, 339772, 424715, 429040, 608840, 679544, 849430, 1217680, 1359088, 1698860, 2633233, 3397720, 5266466, 6795440, 10532932, 13166165, 21065864, 26332330, 42131728, 52664660, 105329320, 210658640]

約数ペア:

[(1, 210658640), (2, 105329320), (4, 52664660), (5, 42131728), (8, 26332330), (10, 21065864), (16, 13166165), (20, 10532932), (31, 6795440), (40, 5266466), (62, 3397720), (80, 2633233), (124, 1698860), (155, 1359088), (173, 1217680), (248, 849430), (310, 679544), (346, 608840), (491, 429040), (496, 424715), (620, 339772), (692, 304420), (865, 243536), (982, 214520), (1240, 169886), (1384, 152210), (1730, 121768), (1964, 107260), (2455, 85808), (2480, 84943), (2768, 76105), (3460, 60884), (3928, 53630), (4910, 42904), (5363, 39280), (6920, 30442), (7856, 26815), (9820, 21452), (10726, 19640), (13840, 15221)]