278720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:97

約数の個数: 56

約数和(自身を含む): 725424

約数和(自身を除く): 446704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 320, 335, 416, 520, 536, 670, 832, 871, 1040, 1072, 1340, 1742, 2080, 2144, 2680, 3484, 4160, 4288, 4355, 5360, 6968, 8710, 10720, 13936, 17420, 21440, 27872, 34840, 55744, 69680, 139360, 278720]

約数ペア:

[(1, 278720), (2, 139360), (4, 69680), (5, 55744), (8, 34840), (10, 27872), (13, 21440), (16, 17420), (20, 13936), (26, 10720), (32, 8710), (40, 6968), (52, 5360), (64, 4355), (65, 4288), (67, 4160), (80, 3484), (104, 2680), (130, 2144), (134, 2080), (160, 1742), (208, 1340), (260, 1072), (268, 1040), (320, 871), (335, 832), (416, 670), (520, 536)]