20163785560

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{643}}^1\times {\mathrm{3253}}^1$

素因数の和:4148

約数の個数: 64

約数和(自身を含む): 45641645280

約数和(自身を除く): 25477859720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 643, 964, 1205, 1286, 1928, 2410, 2572, 3215, 3253, 4820, 5144, 6430, 6506, 9640, 12860, 13012, 16265, 25720, 26024, 32530, 65060, 130120, 154963, 309926, 619852, 774815, 783973, 1239704, 1549630, 1567946, 2091679, 3099260, 3135892, 3919865, 4183358, 6198520, 6271784, 7839730, 8366716, 10458395, 15679460, 16733432, 20916790, 31358920, 41833580, 83667160, 504094639, 1008189278, 2016378556, 2520473195, 4032757112, 5040946390, 10081892780, 20163785560]

約数ペア:

[(1, 20163785560), (2, 10081892780), (4, 5040946390), (5, 4032757112), (8, 2520473195), (10, 2016378556), (20, 1008189278), (40, 504094639), (241, 83667160), (482, 41833580), (643, 31358920), (964, 20916790), (1205, 16733432), (1286, 15679460), (1928, 10458395), (2410, 8366716), (2572, 7839730), (3215, 6271784), (3253, 6198520), (4820, 4183358), (5144, 3919865), (6430, 3135892), (6506, 3099260), (9640, 2091679), (12860, 1567946), (13012, 1549630), (16265, 1239704), (25720, 783973), (26024, 774815), (32530, 619852), (65060, 309926), (130120, 154963)]