66319975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 94279680

約数和(自身を除く): 27959705

約数列:

[1, 5, 17, 19, 25, 43, 85, 95, 191, 215, 323, 425, 475, 731, 817, 955, 1075, 1615, 3247, 3629, 3655, 4085, 4775, 8075, 8213, 13889, 16235, 18145, 18275, 20425, 41065, 61693, 69445, 81175, 90725, 139621, 156047, 205325, 308465, 347225, 698105, 780235, 1542325, 2652799, 3490525, 3901175, 13263995, 66319975]

約数ペア:

[(1, 66319975), (5, 13263995), (17, 3901175), (19, 3490525), (25, 2652799), (43, 1542325), (85, 780235), (95, 698105), (191, 347225), (215, 308465), (323, 205325), (425, 156047), (475, 139621), (731, 90725), (817, 81175), (955, 69445), (1075, 61693), (1615, 41065), (3247, 20425), (3629, 18275), (3655, 18145), (4085, 16235), (4775, 13889), (8075, 8213)]