639752704

素因数分解:

$2^9\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2371}}^1$

素因数の和:2437

約数の個数: 80

約数和(自身を含む): 1397696256

約数和(自身を除く): 757943552

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 248, 256, 272, 496, 512, 527, 544, 992, 1054, 1088, 1984, 2108, 2176, 2371, 3968, 4216, 4352, 4742, 7936, 8432, 8704, 9484, 15872, 16864, 18968, 33728, 37936, 40307, 67456, 73501, 75872, 80614, 134912, 147002, 151744, 161228, 269824, 294004, 303488, 322456, 588008, 606976, 644912, 1176016, 1213952, 1249517, 1289824, 2352032, 2499034, 2579648, 4704064, 4998068, 5159296, 9408128, 9996136, 10318592, 18816256, 19992272, 20637184, 37632512, 39984544, 79969088, 159938176, 319876352, 639752704]

約数ペア:

[(1, 639752704), (2, 319876352), (4, 159938176), (8, 79969088), (16, 39984544), (17, 37632512), (31, 20637184), (32, 19992272), (34, 18816256), (62, 10318592), (64, 9996136), (68, 9408128), (124, 5159296), (128, 4998068), (136, 4704064), (248, 2579648), (256, 2499034), (272, 2352032), (496, 1289824), (512, 1249517), (527, 1213952), (544, 1176016), (992, 644912), (1054, 606976), (1088, 588008), (1984, 322456), (2108, 303488), (2176, 294004), (2371, 269824), (3968, 161228), (4216, 151744), (4352, 147002), (4742, 134912), (7936, 80614), (8432, 75872), (8704, 73501), (9484, 67456), (15872, 40307), (16864, 37936), (18968, 33728)]