78772925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 123039744

約数和(自身を除く): 44266819

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 151, 175, 271, 275, 385, 755, 1057, 1355, 1661, 1897, 1925, 2981, 3775, 5285, 6775, 8305, 9485, 11627, 14905, 20867, 26425, 40921, 41525, 47425, 58135, 74525, 104335, 204605, 286447, 290675, 450131, 521675, 1023025, 1432235, 2250655, 3150917, 7161175, 11253275, 15754585, 78772925]

約数ペア:

[(1, 78772925), (5, 15754585), (7, 11253275), (11, 7161175), (25, 3150917), (35, 2250655), (55, 1432235), (77, 1023025), (151, 521675), (175, 450131), (271, 290675), (275, 286447), (385, 204605), (755, 104335), (1057, 74525), (1355, 58135), (1661, 47425), (1897, 41525), (1925, 40921), (2981, 26425), (3775, 20867), (5285, 14905), (6775, 11627), (8305, 9485)]