20315988

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{349}}^1$

素因数の和:387

約数の個数: 144

約数和(自身を含む): 67032000

約数和(自身を除く): 46716012

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 49, 54, 63, 66, 77, 84, 98, 99, 108, 126, 132, 147, 154, 189, 196, 198, 231, 252, 294, 297, 308, 349, 378, 396, 441, 462, 539, 588, 594, 693, 698, 756, 882, 924, 1047, 1078, 1188, 1323, 1386, 1396, 1617, 1764, 2079, 2094, 2156, 2443, 2646, 2772, 3141, 3234, 3839, 4158, 4188, 4851, 4886, 5292, 6282, 6468, 7329, 7678, 8316, 9423, 9702, 9772, 11517, 12564, 14553, 14658, 15356, 17101, 18846, 19404, 21987, 23034, 26873, 29106, 29316, 34202, 34551, 37692, 43974, 46068, 51303, 53746, 58212, 65961, 68404, 69102, 80619, 87948, 102606, 103653, 107492, 131922, 138204, 153909, 161238, 188111, 205212, 207306, 241857, 263844, 307818, 322476, 376222, 414612, 461727, 483714, 564333, 615636, 725571, 752444, 923454, 967428, 1128666, 1451142, 1692999, 1846908, 2257332, 2902284, 3385998, 5078997, 6771996, 10157994, 20315988]

約数ペア:

[(1, 20315988), (2, 10157994), (3, 6771996), (4, 5078997), (6, 3385998), (7, 2902284), (9, 2257332), (11, 1846908), (12, 1692999), (14, 1451142), (18, 1128666), (21, 967428), (22, 923454), (27, 752444), (28, 725571), (33, 615636), (36, 564333), (42, 483714), (44, 461727), (49, 414612), (54, 376222), (63, 322476), (66, 307818), (77, 263844), (84, 241857), (98, 207306), (99, 205212), (108, 188111), (126, 161238), (132, 153909), (147, 138204), (154, 131922), (189, 107492), (196, 103653), (198, 102606), (231, 87948), (252, 80619), (294, 69102), (297, 68404), (308, 65961), (349, 58212), (378, 53746), (396, 51303), (441, 46068), (462, 43974), (539, 37692), (588, 34551), (594, 34202), (693, 29316), (698, 29106), (756, 26873), (882, 23034), (924, 21987), (1047, 19404), (1078, 18846), (1188, 17101), (1323, 15356), (1386, 14658), (1396, 14553), (1617, 12564), (1764, 11517), (2079, 9772), (2094, 9702), (2156, 9423), (2443, 8316), (2646, 7678), (2772, 7329), (3141, 6468), (3234, 6282), (3839, 5292), (4158, 4886), (4188, 4851)]