245212680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:455

約数の個数: 128

約数和(自身を含む): 756201600

約数和(自身を除く): 510988920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 139, 183, 241, 244, 278, 305, 366, 417, 482, 488, 556, 610, 695, 723, 732, 834, 915, 964, 1112, 1205, 1220, 1390, 1446, 1464, 1668, 1830, 1928, 2085, 2410, 2440, 2780, 2892, 3336, 3615, 3660, 4170, 4820, 5560, 5784, 7230, 7320, 8340, 8479, 9640, 14460, 14701, 16680, 16958, 25437, 28920, 29402, 33499, 33916, 42395, 44103, 50874, 58804, 66998, 67832, 73505, 84790, 88206, 100497, 101748, 117608, 127185, 133996, 147010, 167495, 169580, 176412, 200994, 203496, 220515, 254370, 267992, 294020, 334990, 339160, 352824, 401988, 441030, 502485, 508740, 588040, 669980, 803976, 882060, 1004970, 1017480, 1339960, 1764120, 2009940, 2043439, 4019880, 4086878, 6130317, 8173756, 10217195, 12260634, 16347512, 20434390, 24521268, 30651585, 40868780, 49042536, 61303170, 81737560, 122606340, 245212680]

約数ペア:

[(1, 245212680), (2, 122606340), (3, 81737560), (4, 61303170), (5, 49042536), (6, 40868780), (8, 30651585), (10, 24521268), (12, 20434390), (15, 16347512), (20, 12260634), (24, 10217195), (30, 8173756), (40, 6130317), (60, 4086878), (61, 4019880), (120, 2043439), (122, 2009940), (139, 1764120), (183, 1339960), (241, 1017480), (244, 1004970), (278, 882060), (305, 803976), (366, 669980), (417, 588040), (482, 508740), (488, 502485), (556, 441030), (610, 401988), (695, 352824), (723, 339160), (732, 334990), (834, 294020), (915, 267992), (964, 254370), (1112, 220515), (1205, 203496), (1220, 200994), (1390, 176412), (1446, 169580), (1464, 167495), (1668, 147010), (1830, 133996), (1928, 127185), (2085, 117608), (2410, 101748), (2440, 100497), (2780, 88206), (2892, 84790), (3336, 73505), (3615, 67832), (3660, 66998), (4170, 58804), (4820, 50874), (5560, 44103), (5784, 42395), (7230, 33916), (7320, 33499), (8340, 29402), (8479, 28920), (9640, 25437), (14460, 16958), (14701, 16680)]