678663160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{1907}}^1$

素因数の和:1997

約数の個数: 128

約数和(自身を含む): 1846333440

約数和(自身を除く): 1167670280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 41, 56, 62, 70, 82, 124, 140, 155, 164, 205, 217, 248, 280, 287, 310, 328, 410, 434, 574, 620, 820, 868, 1085, 1148, 1240, 1271, 1435, 1640, 1736, 1907, 2170, 2296, 2542, 2870, 3814, 4340, 5084, 5740, 6355, 7628, 8680, 8897, 9535, 10168, 11480, 12710, 13349, 15256, 17794, 19070, 25420, 26698, 35588, 38140, 44485, 50840, 53396, 59117, 66745, 71176, 76280, 78187, 88970, 106792, 118234, 133490, 156374, 177940, 236468, 266980, 295585, 312748, 355880, 390935, 413819, 472936, 533960, 547309, 591170, 625496, 781870, 827638, 1094618, 1182340, 1563740, 1655276, 2069095, 2189236, 2364680, 2423797, 2736545, 3127480, 3310552, 4138190, 4378472, 4847594, 5473090, 8276380, 9695188, 10946180, 12118985, 16552760, 16966579, 19390376, 21892360, 24237970, 33933158, 48475940, 67866316, 84832895, 96951880, 135732632, 169665790, 339331580, 678663160]

約数ペア:

[(1, 678663160), (2, 339331580), (4, 169665790), (5, 135732632), (7, 96951880), (8, 84832895), (10, 67866316), (14, 48475940), (20, 33933158), (28, 24237970), (31, 21892360), (35, 19390376), (40, 16966579), (41, 16552760), (56, 12118985), (62, 10946180), (70, 9695188), (82, 8276380), (124, 5473090), (140, 4847594), (155, 4378472), (164, 4138190), (205, 3310552), (217, 3127480), (248, 2736545), (280, 2423797), (287, 2364680), (310, 2189236), (328, 2069095), (410, 1655276), (434, 1563740), (574, 1182340), (620, 1094618), (820, 827638), (868, 781870), (1085, 625496), (1148, 591170), (1240, 547309), (1271, 533960), (1435, 472936), (1640, 413819), (1736, 390935), (1907, 355880), (2170, 312748), (2296, 295585), (2542, 266980), (2870, 236468), (3814, 177940), (4340, 156374), (5084, 133490), (5740, 118234), (6355, 106792), (7628, 88970), (8680, 78187), (8897, 76280), (9535, 71176), (10168, 66745), (11480, 59117), (12710, 53396), (13349, 50840), (15256, 44485), (17794, 38140), (19070, 35588), (25420, 26698)]