251069085040

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{641}}^1\times {\mathrm{80263}}^1$

素因数の和:80978

約数の個数: 80

約数和(自身を含む): 594238055616

約数和(自身を除く): 343168970576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 641, 976, 1220, 1282, 2440, 2564, 3205, 4880, 5128, 6410, 10256, 12820, 25640, 39101, 51280, 78202, 80263, 156404, 160526, 195505, 312808, 321052, 391010, 401315, 625616, 642104, 782020, 802630, 1284208, 1564040, 1605260, 3128080, 3210520, 4896043, 6421040, 9792086, 19584172, 24480215, 39168344, 48960430, 51448583, 78336688, 97920860, 102897166, 195841720, 205794332, 257242915, 391683440, 411588664, 514485830, 823177328, 1028971660, 2057943320, 3138363563, 4115886640, 6276727126, 12553454252, 15691817815, 25106908504, 31383635630, 50213817008, 62767271260, 125534542520, 251069085040]

約数ペア:

[(1, 251069085040), (2, 125534542520), (4, 62767271260), (5, 50213817008), (8, 31383635630), (10, 25106908504), (16, 15691817815), (20, 12553454252), (40, 6276727126), (61, 4115886640), (80, 3138363563), (122, 2057943320), (244, 1028971660), (305, 823177328), (488, 514485830), (610, 411588664), (641, 391683440), (976, 257242915), (1220, 205794332), (1282, 195841720), (2440, 102897166), (2564, 97920860), (3205, 78336688), (4880, 51448583), (5128, 48960430), (6410, 39168344), (10256, 24480215), (12820, 19584172), (25640, 9792086), (39101, 6421040), (51280, 4896043), (78202, 3210520), (80263, 3128080), (156404, 1605260), (160526, 1564040), (195505, 1284208), (312808, 802630), (321052, 782020), (391010, 642104), (401315, 625616)]