55121720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{44453}}^1$

素因数の和:44495

約数の個数: 32

約数和(自身を含む): 128027520

約数和(自身を除く): 72905800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 44453, 88906, 177812, 222265, 355624, 444530, 889060, 1378043, 1778120, 2756086, 5512172, 6890215, 11024344, 13780430, 27560860, 55121720]

約数ペア:

[(1, 55121720), (2, 27560860), (4, 13780430), (5, 11024344), (8, 6890215), (10, 5512172), (20, 2756086), (31, 1778120), (40, 1378043), (62, 889060), (124, 444530), (155, 355624), (248, 222265), (310, 177812), (620, 88906), (1240, 44453)]