20636252

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 72

約数和(自身を含む): 46116000

約数和(自身を除く): 25479748

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 89, 91, 98, 169, 178, 182, 196, 338, 343, 356, 364, 623, 637, 676, 686, 1157, 1183, 1246, 1274, 1372, 2314, 2366, 2492, 2548, 4361, 4459, 4628, 4732, 8099, 8281, 8722, 8918, 15041, 16198, 16562, 17444, 17836, 30082, 30527, 32396, 33124, 56693, 57967, 60164, 61054, 105287, 113386, 115934, 122108, 210574, 226772, 231868, 396851, 421148, 737009, 793702, 1474018, 1587404, 2948036, 5159063, 10318126, 20636252]

約数ペア:

[(1, 20636252), (2, 10318126), (4, 5159063), (7, 2948036), (13, 1587404), (14, 1474018), (26, 793702), (28, 737009), (49, 421148), (52, 396851), (89, 231868), (91, 226772), (98, 210574), (169, 122108), (178, 115934), (182, 113386), (196, 105287), (338, 61054), (343, 60164), (356, 57967), (364, 56693), (623, 33124), (637, 32396), (676, 30527), (686, 30082), (1157, 17836), (1183, 17444), (1246, 16562), (1274, 16198), (1372, 15041), (2314, 8918), (2366, 8722), (2492, 8281), (2548, 8099), (4361, 4732), (4459, 4628)]