631445640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1531}}^1$

素因数の和:2043

約数の個数: 128

約数和(自身を含む): 2170782720

約数和(自身を除く): 1539337080

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, 491, 840, 982, 1473, 1531, 1964, 2455, 2946, 3062, 3437, 3928, 4593, 4910, 5892, 6124, 6874, 7365, 7655, 9186, 9820, 10311, 10717, 11784, 12248, 13748, 14730, 15310, 17185, 18372, 19640, 20622, 21434, 22965, 27496, 29460, 30620, 32151, 34370, 36744, 41244, 42868, 45930, 51555, 53585, 58920, 61240, 64302, 68740, 82488, 85736, 91860, 103110, 107170, 128604, 137480, 160755, 183720, 206220, 214340, 257208, 321510, 412440, 428680, 643020, 751721, 1286040, 1503442, 2255163, 3006884, 3758605, 4510326, 5262047, 6013768, 7517210, 9020652, 10524094, 11275815, 15034420, 15786141, 18041304, 21048188, 22551630, 26310235, 30068840, 31572282, 42096376, 45103260, 52620470, 63144564, 78930705, 90206520, 105240940, 126289128, 157861410, 210481880, 315722820, 631445640]

約数ペア:

[(1, 631445640), (2, 315722820), (3, 210481880), (4, 157861410), (5, 126289128), (6, 105240940), (7, 90206520), (8, 78930705), (10, 63144564), (12, 52620470), (14, 45103260), (15, 42096376), (20, 31572282), (21, 30068840), (24, 26310235), (28, 22551630), (30, 21048188), (35, 18041304), (40, 15786141), (42, 15034420), (56, 11275815), (60, 10524094), (70, 9020652), (84, 7517210), (105, 6013768), (120, 5262047), (140, 4510326), (168, 3758605), (210, 3006884), (280, 2255163), (420, 1503442), (491, 1286040), (840, 751721), (982, 643020), (1473, 428680), (1531, 412440), (1964, 321510), (2455, 257208), (2946, 214340), (3062, 206220), (3437, 183720), (3928, 160755), (4593, 137480), (4910, 128604), (5892, 107170), (6124, 103110), (6874, 91860), (7365, 85736), (7655, 82488), (9186, 68740), (9820, 64302), (10311, 61240), (10717, 58920), (11784, 53585), (12248, 51555), (13748, 45930), (14730, 42868), (15310, 41244), (17185, 36744), (18372, 34370), (19640, 32151), (20622, 30620), (21434, 29460), (22965, 27496)]