164394880

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19759}}^1$

素因数の和:19791

約数の個数: 64

約数和(自身を含む): 423259200

約数和(自身を除く): 258864320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 260, 320, 416, 520, 640, 832, 1040, 1664, 2080, 4160, 8320, 19759, 39518, 79036, 98795, 158072, 197590, 256867, 316144, 395180, 513734, 632288, 790360, 1027468, 1264576, 1284335, 1580720, 2054936, 2529152, 2568670, 3161440, 4109872, 5137340, 6322880, 8219744, 10274680, 12645760, 16439488, 20549360, 32878976, 41098720, 82197440, 164394880]

約数ペア:

[(1, 164394880), (2, 82197440), (4, 41098720), (5, 32878976), (8, 20549360), (10, 16439488), (13, 12645760), (16, 10274680), (20, 8219744), (26, 6322880), (32, 5137340), (40, 4109872), (52, 3161440), (64, 2568670), (65, 2529152), (80, 2054936), (104, 1580720), (128, 1284335), (130, 1264576), (160, 1027468), (208, 790360), (260, 632288), (320, 513734), (416, 395180), (520, 316144), (640, 256867), (832, 197590), (1040, 158072), (1664, 98795), (2080, 79036), (4160, 39518), (8320, 19759)]