27948880

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8521}}^1$

素因数の和:8575

約数の個数: 40

約数和(自身を含む): 66573864

約数和(自身を除く): 38624984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8521, 17042, 34084, 42605, 68168, 85210, 136336, 170420, 340840, 349361, 681680, 698722, 1397444, 1746805, 2794888, 3493610, 5589776, 6987220, 13974440, 27948880]

約数ペア:

[(1, 27948880), (2, 13974440), (4, 6987220), (5, 5589776), (8, 3493610), (10, 2794888), (16, 1746805), (20, 1397444), (40, 698722), (41, 681680), (80, 349361), (82, 340840), (164, 170420), (205, 136336), (328, 85210), (410, 68168), (656, 42605), (820, 34084), (1640, 17042), (3280, 8521)]