90755780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{991}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 201653760

約数和(自身を除く): 110897980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 482, 964, 991, 1205, 1982, 2410, 3964, 4579, 4820, 4955, 9158, 9910, 18316, 18829, 19820, 22895, 37658, 45790, 75316, 91580, 94145, 188290, 238831, 376580, 477662, 955324, 1194155, 2388310, 4537789, 4776620, 9075578, 18151156, 22688945, 45377890, 90755780]

約数ペア:

[(1, 90755780), (2, 45377890), (4, 22688945), (5, 18151156), (10, 9075578), (19, 4776620), (20, 4537789), (38, 2388310), (76, 1194155), (95, 955324), (190, 477662), (241, 376580), (380, 238831), (482, 188290), (964, 94145), (991, 91580), (1205, 75316), (1982, 45790), (2410, 37658), (3964, 22895), (4579, 19820), (4820, 18829), (4955, 18316), (9158, 9910)]