164021740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:511

約数の個数: 72

約数和(自身を含む): 370686960

約数和(自身を除く): 206665220

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 419, 460, 529, 740, 838, 851, 1058, 1676, 1702, 2095, 2116, 2645, 3404, 4190, 4255, 5290, 8380, 8510, 9637, 10580, 15503, 17020, 19274, 19573, 31006, 38548, 39146, 48185, 62012, 77515, 78292, 96370, 97865, 155030, 192740, 195730, 221651, 310060, 356569, 391460, 443302, 713138, 886604, 1108255, 1426276, 1782845, 2216510, 3565690, 4433020, 7131380, 8201087, 16402174, 32804348, 41005435, 82010870, 164021740]

約数ペア:

[(1, 164021740), (2, 82010870), (4, 41005435), (5, 32804348), (10, 16402174), (20, 8201087), (23, 7131380), (37, 4433020), (46, 3565690), (74, 2216510), (92, 1782845), (115, 1426276), (148, 1108255), (185, 886604), (230, 713138), (370, 443302), (419, 391460), (460, 356569), (529, 310060), (740, 221651), (838, 195730), (851, 192740), (1058, 155030), (1676, 97865), (1702, 96370), (2095, 78292), (2116, 77515), (2645, 62012), (3404, 48185), (4190, 39146), (4255, 38548), (5290, 31006), (8380, 19573), (8510, 19274), (9637, 17020), (10580, 15503)]