80965840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53267}}^1$

素因数の和:53299

約数の個数: 40

約数和(自身を含む): 198156960

約数和(自身を除く): 117191120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53267, 106534, 213068, 266335, 426136, 532670, 852272, 1012073, 1065340, 2024146, 2130680, 4048292, 4261360, 5060365, 8096584, 10120730, 16193168, 20241460, 40482920, 80965840]

約数ペア:

[(1, 80965840), (2, 40482920), (4, 20241460), (5, 16193168), (8, 10120730), (10, 8096584), (16, 5060365), (19, 4261360), (20, 4048292), (38, 2130680), (40, 2024146), (76, 1065340), (80, 1012073), (95, 852272), (152, 532670), (190, 426136), (304, 266335), (380, 213068), (760, 106534), (1520, 53267)]