20572468

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 43029504

約数和(自身を除く): 22457036

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 137, 173, 217, 274, 346, 434, 548, 692, 868, 959, 1211, 1918, 2422, 3836, 4247, 4844, 5363, 8494, 10726, 16988, 21452, 23701, 29729, 37541, 47402, 59458, 75082, 94804, 118916, 150164, 165907, 331814, 663628, 734731, 1469462, 2938924, 5143117, 10286234, 20572468]

約数ペア:

[(1, 20572468), (2, 10286234), (4, 5143117), (7, 2938924), (14, 1469462), (28, 734731), (31, 663628), (62, 331814), (124, 165907), (137, 150164), (173, 118916), (217, 94804), (274, 75082), (346, 59458), (434, 47402), (548, 37541), (692, 29729), (868, 23701), (959, 21452), (1211, 16988), (1918, 10726), (2422, 8494), (3836, 5363), (4247, 4844)]