218363225

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 286281900

約数和(自身を除く): 67918675

約数列:

[1, 5, 25, 31, 61, 149, 155, 305, 745, 775, 961, 1525, 1891, 3725, 4619, 4805, 9089, 9455, 23095, 24025, 45445, 47275, 58621, 115475, 143189, 227225, 281759, 293105, 715945, 1408795, 1465525, 3579725, 7043975, 8734529, 43672645, 218363225]

約数ペア:

[(1, 218363225), (5, 43672645), (25, 8734529), (31, 7043975), (61, 3579725), (149, 1465525), (155, 1408795), (305, 715945), (745, 293105), (775, 281759), (961, 227225), (1525, 143189), (1891, 115475), (3725, 58621), (4619, 47275), (4805, 45445), (9089, 24025), (9455, 23095)]