68880975

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{547}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 120682752

約数和(自身を除く): 51801777

約数列:

[1, 3, 5, 15, 23, 25, 69, 73, 75, 115, 219, 345, 365, 547, 575, 1095, 1641, 1679, 1725, 1825, 2735, 5037, 5475, 8205, 8395, 12581, 13675, 25185, 37743, 39931, 41025, 41975, 62905, 119793, 125925, 188715, 199655, 314525, 598965, 918413, 943575, 998275, 2755239, 2994825, 4592065, 13776195, 22960325, 68880975]

約数ペア:

[(1, 68880975), (3, 22960325), (5, 13776195), (15, 4592065), (23, 2994825), (25, 2755239), (69, 998275), (73, 943575), (75, 918413), (115, 598965), (219, 314525), (345, 199655), (365, 188715), (547, 125925), (575, 119793), (1095, 62905), (1641, 41975), (1679, 41025), (1725, 39931), (1825, 37743), (2735, 25185), (5037, 13675), (5475, 12581), (8205, 8395)]