251570488

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7489}}^1$

素因数の和:7544

約数の個数: 64

約数和(自身を含む): 566244000

約数和(自身を除く): 314673512

約数列:

[1, 2, 4, 8, 13, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 221, 247, 323, 442, 494, 646, 884, 988, 1292, 1768, 1976, 2584, 4199, 7489, 8398, 14978, 16796, 29956, 33592, 59912, 97357, 127313, 142291, 194714, 254626, 284582, 389428, 509252, 569164, 778856, 1018504, 1138328, 1655069, 1849783, 2418947, 3310138, 3699566, 4837894, 6620276, 7399132, 9675788, 13240552, 14798264, 19351576, 31446311, 62892622, 125785244, 251570488]

約数ペア:

[(1, 251570488), (2, 125785244), (4, 62892622), (8, 31446311), (13, 19351576), (17, 14798264), (19, 13240552), (26, 9675788), (34, 7399132), (38, 6620276), (52, 4837894), (68, 3699566), (76, 3310138), (104, 2418947), (136, 1849783), (152, 1655069), (221, 1138328), (247, 1018504), (323, 778856), (442, 569164), (494, 509252), (646, 389428), (884, 284582), (988, 254626), (1292, 194714), (1768, 142291), (1976, 127313), (2584, 97357), (4199, 59912), (7489, 33592), (8398, 29956), (14978, 16796)]