20423312

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^3\times {\mathrm{83}}^1$

素因数の和:137

約数の個数: 80

約数和(自身を含む): 49580160

約数和(自身を除く): 29156848

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 83, 91, 104, 112, 166, 169, 182, 208, 332, 338, 364, 581, 664, 676, 728, 1079, 1162, 1183, 1328, 1352, 1456, 2158, 2197, 2324, 2366, 2704, 4316, 4394, 4648, 4732, 7553, 8632, 8788, 9296, 9464, 14027, 15106, 15379, 17264, 17576, 18928, 28054, 30212, 30758, 35152, 56108, 60424, 61516, 98189, 112216, 120848, 123032, 182351, 196378, 224432, 246064, 364702, 392756, 729404, 785512, 1276457, 1458808, 1571024, 2552914, 2917616, 5105828, 10211656, 20423312]

約数ペア:

[(1, 20423312), (2, 10211656), (4, 5105828), (7, 2917616), (8, 2552914), (13, 1571024), (14, 1458808), (16, 1276457), (26, 785512), (28, 729404), (52, 392756), (56, 364702), (83, 246064), (91, 224432), (104, 196378), (112, 182351), (166, 123032), (169, 120848), (182, 112216), (208, 98189), (332, 61516), (338, 60424), (364, 56108), (581, 35152), (664, 30758), (676, 30212), (728, 28054), (1079, 18928), (1162, 17576), (1183, 17264), (1328, 15379), (1352, 15106), (1456, 14027), (2158, 9464), (2197, 9296), (2324, 8788), (2366, 8632), (2704, 7553), (4316, 4732), (4394, 4648)]