20392788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2143}}^1$

素因数の和:2224

約数の個数: 48

約数和(自身を含む): 52107776

約数和(自身を除く): 31714988

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 61, 78, 122, 156, 183, 244, 366, 732, 793, 1586, 2143, 2379, 3172, 4286, 4758, 6429, 8572, 9516, 12858, 25716, 27859, 55718, 83577, 111436, 130723, 167154, 261446, 334308, 392169, 522892, 784338, 1568676, 1699399, 3398798, 5098197, 6797596, 10196394, 20392788]

約数ペア:

[(1, 20392788), (2, 10196394), (3, 6797596), (4, 5098197), (6, 3398798), (12, 1699399), (13, 1568676), (26, 784338), (39, 522892), (52, 392169), (61, 334308), (78, 261446), (122, 167154), (156, 130723), (183, 111436), (244, 83577), (366, 55718), (732, 27859), (793, 25716), (1586, 12858), (2143, 9516), (2379, 8572), (3172, 6429), (4286, 4758)]