257522408

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{983}}^1$

素因数の和:1242

約数の個数: 64

約数和(自身を含む): 570326400

約数和(自身を除く): 312803992

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 229, 286, 458, 572, 916, 983, 1144, 1832, 1966, 2519, 2977, 3932, 5038, 5954, 7864, 10076, 10813, 11908, 12779, 20152, 21626, 23816, 25558, 32747, 43252, 51116, 65494, 86504, 102232, 130988, 140569, 225107, 261976, 281138, 450214, 562276, 900428, 1124552, 1800856, 2476177, 2926391, 4952354, 5852782, 9904708, 11705564, 19809416, 23411128, 32190301, 64380602, 128761204, 257522408]

約数ペア:

[(1, 257522408), (2, 128761204), (4, 64380602), (8, 32190301), (11, 23411128), (13, 19809416), (22, 11705564), (26, 9904708), (44, 5852782), (52, 4952354), (88, 2926391), (104, 2476177), (143, 1800856), (229, 1124552), (286, 900428), (458, 562276), (572, 450214), (916, 281138), (983, 261976), (1144, 225107), (1832, 140569), (1966, 130988), (2519, 102232), (2977, 86504), (3932, 65494), (5038, 51116), (5954, 43252), (7864, 32747), (10076, 25558), (10813, 23816), (11908, 21626), (12779, 20152)]