26401375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1$

素因数の和:257

約数の個数: 64

約数和(自身を含む): 44448768

約数和(自身を除く): 18047393

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 125, 143, 175, 211, 275, 325, 385, 455, 715, 875, 1001, 1055, 1375, 1477, 1625, 1925, 2275, 2321, 2743, 3575, 5005, 5275, 7385, 9625, 11375, 11605, 13715, 16247, 17875, 19201, 25025, 26375, 30173, 36925, 58025, 68575, 81235, 96005, 125125, 150865, 184625, 211211, 290125, 342875, 406175, 480025, 754325, 1056055, 2030875, 2400125, 3771625, 5280275, 26401375]

約数ペア:

[(1, 26401375), (5, 5280275), (7, 3771625), (11, 2400125), (13, 2030875), (25, 1056055), (35, 754325), (55, 480025), (65, 406175), (77, 342875), (91, 290125), (125, 211211), (143, 184625), (175, 150865), (211, 125125), (275, 96005), (325, 81235), (385, 68575), (455, 58025), (715, 36925), (875, 30173), (1001, 26375), (1055, 25025), (1375, 19201), (1477, 17875), (1625, 16247), (1925, 13715), (2275, 11605), (2321, 11375), (2743, 9625), (3575, 7385), (5005, 5275)]