71027240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{17581}}^1$

素因数の和:17693

約数の個数: 32

約数和(自身を含む): 161402760

約数和(自身を除く): 90375520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 17581, 35162, 70324, 87905, 140648, 175810, 351620, 703240, 1775681, 3551362, 7102724, 8878405, 14205448, 17756810, 35513620, 71027240]

約数ペア:

[(1, 71027240), (2, 35513620), (4, 17756810), (5, 14205448), (8, 8878405), (10, 7102724), (20, 3551362), (40, 1775681), (101, 703240), (202, 351620), (404, 175810), (505, 140648), (808, 87905), (1010, 70324), (2020, 35162), (4040, 17581)]