261342815

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{293}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 340804800

約数和(自身を除く): 79461985

約数列:

[1, 5, 19, 41, 95, 205, 229, 293, 779, 1145, 1465, 3895, 4351, 5567, 9389, 12013, 21755, 27835, 46945, 60065, 67097, 178391, 228247, 335485, 891955, 1141235, 1274843, 2750977, 6374215, 13754885, 52268563, 261342815]

約数ペア:

[(1, 261342815), (5, 52268563), (19, 13754885), (41, 6374215), (95, 2750977), (205, 1274843), (229, 1141235), (293, 891955), (779, 335485), (1145, 228247), (1465, 178391), (3895, 67097), (4351, 60065), (5567, 46945), (9389, 27835), (12013, 21755)]