251015440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241361}}^1$

素因数の和:241387

約数の個数: 40

約数和(自身を含む): 628506648

約数和(自身を除く): 377491208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 241361, 482722, 965444, 1206805, 1930888, 2413610, 3137693, 3861776, 4827220, 6275386, 9654440, 12550772, 15688465, 19308880, 25101544, 31376930, 50203088, 62753860, 125507720, 251015440]

約数ペア:

[(1, 251015440), (2, 125507720), (4, 62753860), (5, 50203088), (8, 31376930), (10, 25101544), (13, 19308880), (16, 15688465), (20, 12550772), (26, 9654440), (40, 6275386), (52, 4827220), (65, 3861776), (80, 3137693), (104, 2413610), (130, 1930888), (208, 1206805), (260, 965444), (520, 482722), (1040, 241361)]