987490625

素因数分解:

$5^5\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1249}}^1$

素因数の和:1308

約数の個数: 48

約数和(自身を含む): 1406160000

約数和(自身を除く): 418669375

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 625, 1249, 1265, 1375, 2875, 3125, 6245, 6325, 6875, 13739, 14375, 28727, 31225, 31625, 34375, 68695, 71875, 143635, 156125, 158125, 315997, 343475, 718175, 780625, 790625, 1579985, 1717375, 3590875, 3903125, 7899925, 8586875, 17954375, 39499625, 42934375, 89771875, 197498125, 987490625]

約数ペア:

[(1, 987490625), (5, 197498125), (11, 89771875), (23, 42934375), (25, 39499625), (55, 17954375), (115, 8586875), (125, 7899925), (253, 3903125), (275, 3590875), (575, 1717375), (625, 1579985), (1249, 790625), (1265, 780625), (1375, 718175), (2875, 343475), (3125, 315997), (6245, 158125), (6325, 156125), (6875, 143635), (13739, 71875), (14375, 68695), (28727, 34375), (31225, 31625)]