257163040

素因数分解:

$2^5\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3517}}^1$

素因数の和:3989

約数の個数: 48

約数和(自身を含む): 609050232

約数和(自身を除く): 351887192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 457, 914, 1828, 2285, 3517, 3656, 4570, 7034, 7312, 9140, 14068, 14624, 17585, 18280, 28136, 35170, 36560, 56272, 70340, 73120, 112544, 140680, 281360, 562720, 1607269, 3214538, 6429076, 8036345, 12858152, 16072690, 25716304, 32145380, 51432608, 64290760, 128581520, 257163040]

約数ペア:

[(1, 257163040), (2, 128581520), (4, 64290760), (5, 51432608), (8, 32145380), (10, 25716304), (16, 16072690), (20, 12858152), (32, 8036345), (40, 6429076), (80, 3214538), (160, 1607269), (457, 562720), (914, 281360), (1828, 140680), (2285, 112544), (3517, 73120), (3656, 70340), (4570, 56272), (7034, 36560), (7312, 35170), (9140, 28136), (14068, 18280), (14624, 17585)]