40628440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16651}}^1$

素因数の和:16723

約数の個数: 32

約数和(自身を含む): 92918160

約数和(自身を除く): 52289720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 16651, 33302, 66604, 83255, 133208, 166510, 333020, 666040, 1015711, 2031422, 4062844, 5078555, 8125688, 10157110, 20314220, 40628440]

約数ペア:

[(1, 40628440), (2, 20314220), (4, 10157110), (5, 8125688), (8, 5078555), (10, 4062844), (20, 2031422), (40, 1015711), (61, 666040), (122, 333020), (244, 166510), (305, 133208), (488, 83255), (610, 66604), (1220, 33302), (2440, 16651)]