20508717184

素因数分解:

$2^7\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{51239}}^1$

素因数の和:51365

約数の個数: 64

約数和(自身を含む): 42334488000

約数和(自身を除く): 21825770816

約数列:

[1, 2, 4, 8, 16, 32, 53, 59, 64, 106, 118, 128, 212, 236, 424, 472, 848, 944, 1696, 1888, 3127, 3392, 3776, 6254, 6784, 7552, 12508, 25016, 50032, 51239, 100064, 102478, 200128, 204956, 400256, 409912, 819824, 1639648, 2715667, 3023101, 3279296, 5431334, 6046202, 6558592, 10862668, 12092404, 21725336, 24184808, 43450672, 48369616, 86901344, 96739232, 160224353, 173802688, 193478464, 320448706, 347605376, 386956928, 640897412, 1281794824, 2563589648, 5127179296, 10254358592, 20508717184]

約数ペア:

[(1, 20508717184), (2, 10254358592), (4, 5127179296), (8, 2563589648), (16, 1281794824), (32, 640897412), (53, 386956928), (59, 347605376), (64, 320448706), (106, 193478464), (118, 173802688), (128, 160224353), (212, 96739232), (236, 86901344), (424, 48369616), (472, 43450672), (848, 24184808), (944, 21725336), (1696, 12092404), (1888, 10862668), (3127, 6558592), (3392, 6046202), (3776, 5431334), (6254, 3279296), (6784, 3023101), (7552, 2715667), (12508, 1639648), (25016, 819824), (50032, 409912), (51239, 400256), (100064, 204956), (102478, 200128)]