205833520

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{42179}}^1$

素因数の和:42253

約数の個数: 40

約数和(自身を含む): 486419760

約数和(自身を除く): 280586240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 42179, 84358, 168716, 210895, 337432, 421790, 674864, 843580, 1687160, 2572919, 3374320, 5145838, 10291676, 12864595, 20583352, 25729190, 41166704, 51458380, 102916760, 205833520]

約数ペア:

[(1, 205833520), (2, 102916760), (4, 51458380), (5, 41166704), (8, 25729190), (10, 20583352), (16, 12864595), (20, 10291676), (40, 5145838), (61, 3374320), (80, 2572919), (122, 1687160), (244, 843580), (305, 674864), (488, 421790), (610, 337432), (976, 210895), (1220, 168716), (2440, 84358), (4880, 42179)]