209810320

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{5689}}^1$

素因数の和:6163

約数の個数: 40

約数和(自身を含む): 488953080

約数和(自身を除く): 279142760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 5689, 7376, 9220, 11378, 18440, 22756, 28445, 36880, 45512, 56890, 91024, 113780, 227560, 455120, 2622629, 5245258, 10490516, 13113145, 20981032, 26226290, 41962064, 52452580, 104905160, 209810320]

約数ペア:

[(1, 209810320), (2, 104905160), (4, 52452580), (5, 41962064), (8, 26226290), (10, 20981032), (16, 13113145), (20, 10490516), (40, 5245258), (80, 2622629), (461, 455120), (922, 227560), (1844, 113780), (2305, 91024), (3688, 56890), (4610, 45512), (5689, 36880), (7376, 28445), (9220, 22756), (11378, 18440)]