281331875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:453

約数の個数: 40

約数和(自身を含む): 387475968

約数和(自身を除く): 106144093

約数列:

[1, 5, 11, 25, 55, 125, 151, 271, 275, 625, 755, 1355, 1375, 1661, 2981, 3775, 6775, 6875, 8305, 14905, 18875, 33875, 40921, 41525, 74525, 94375, 169375, 204605, 207625, 372625, 450131, 1023025, 1038125, 1863125, 2250655, 5115125, 11253275, 25575625, 56266375, 281331875]

約数ペア:

[(1, 281331875), (5, 56266375), (11, 25575625), (25, 11253275), (55, 5115125), (125, 2250655), (151, 1863125), (271, 1038125), (275, 1023025), (625, 450131), (755, 372625), (1355, 207625), (1375, 204605), (1661, 169375), (2981, 94375), (3775, 74525), (6775, 41525), (6875, 40921), (8305, 33875), (14905, 18875)]