656343440

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{28001}}^1$

素因数の和:28307

約数の個数: 40

約数和(自身を含む): 1531261368

約数和(自身を除く): 874917928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 1172, 1465, 2344, 2930, 4688, 5860, 11720, 23440, 28001, 56002, 112004, 140005, 224008, 280010, 448016, 560020, 1120040, 2240080, 8204293, 16408586, 32817172, 41021465, 65634344, 82042930, 131268688, 164085860, 328171720, 656343440]

約数ペア:

[(1, 656343440), (2, 328171720), (4, 164085860), (5, 131268688), (8, 82042930), (10, 65634344), (16, 41021465), (20, 32817172), (40, 16408586), (80, 8204293), (293, 2240080), (586, 1120040), (1172, 560020), (1465, 448016), (2344, 280010), (2930, 224008), (4688, 140005), (5860, 112004), (11720, 56002), (23440, 28001)]