178113020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{2617}}^1$

素因数の和:2750

約数の個数: 48

約数和(自身を含む): 387924768

約数和(自身を除く): 209811748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 2617, 3403, 5234, 6806, 10468, 13085, 13612, 17015, 26170, 34030, 52340, 68060, 107297, 214594, 217211, 429188, 434422, 536485, 868844, 1072970, 1086055, 2145940, 2172110, 4344220, 8905651, 17811302, 35622604, 44528255, 89056510, 178113020]

約数ペア:

[(1, 178113020), (2, 89056510), (4, 44528255), (5, 35622604), (10, 17811302), (20, 8905651), (41, 4344220), (82, 2172110), (83, 2145940), (164, 1086055), (166, 1072970), (205, 868844), (332, 536485), (410, 434422), (415, 429188), (820, 217211), (830, 214594), (1660, 107297), (2617, 68060), (3403, 52340), (5234, 34030), (6806, 26170), (10468, 17015), (13085, 13612)]