221427980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{4099}}^1$

素因数の和:4218

約数の個数: 48

約数和(自身を含む): 484226400

約数和(自身を除く): 262798420

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 365, 370, 730, 740, 1460, 2701, 4099, 5402, 8198, 10804, 13505, 16396, 20495, 27010, 40990, 54020, 81980, 151663, 299227, 303326, 598454, 606652, 758315, 1196908, 1496135, 1516630, 2992270, 3033260, 5984540, 11071399, 22142798, 44285596, 55356995, 110713990, 221427980]

約数ペア:

[(1, 221427980), (2, 110713990), (4, 55356995), (5, 44285596), (10, 22142798), (20, 11071399), (37, 5984540), (73, 3033260), (74, 2992270), (146, 1516630), (148, 1496135), (185, 1196908), (292, 758315), (365, 606652), (370, 598454), (730, 303326), (740, 299227), (1460, 151663), (2701, 81980), (4099, 54020), (5402, 40990), (8198, 27010), (10804, 20495), (13505, 16396)]