20472452

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5113}}^1$

素因数の和:5148

約数の個数: 48

約数和(自身を含む): 48112512

約数和(自身を除く): 27640060

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5113, 10226, 20452, 35791, 56243, 66469, 71582, 112486, 132938, 143164, 224972, 265876, 393701, 465283, 731159, 787402, 930566, 1462318, 1574804, 1861132, 2924636, 5118113, 10236226, 20472452]

約数ペア:

[(1, 20472452), (2, 10236226), (4, 5118113), (7, 2924636), (11, 1861132), (13, 1574804), (14, 1462318), (22, 930566), (26, 787402), (28, 731159), (44, 465283), (52, 393701), (77, 265876), (91, 224972), (143, 143164), (154, 132938), (182, 112486), (286, 71582), (308, 66469), (364, 56243), (572, 35791), (1001, 20452), (2002, 10226), (4004, 5113)]