20238580

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:436

約数の個数: 48

約数和(自身を含む): 44153424

約数和(自身を除く): 23914844

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 106, 122, 212, 244, 265, 305, 313, 530, 610, 626, 1060, 1220, 1252, 1565, 3130, 3233, 6260, 6466, 12932, 16165, 16589, 19093, 32330, 33178, 38186, 64660, 66356, 76372, 82945, 95465, 165890, 190930, 331780, 381860, 1011929, 2023858, 4047716, 5059645, 10119290, 20238580]

約数ペア:

[(1, 20238580), (2, 10119290), (4, 5059645), (5, 4047716), (10, 2023858), (20, 1011929), (53, 381860), (61, 331780), (106, 190930), (122, 165890), (212, 95465), (244, 82945), (265, 76372), (305, 66356), (313, 64660), (530, 38186), (610, 33178), (626, 32330), (1060, 19093), (1220, 16589), (1252, 16165), (1565, 12932), (3130, 6466), (3233, 6260)]