2205680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 40

約数和(自身を含む): 5208000

約数和(自身を除く): 3002320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 349, 395, 632, 698, 790, 1264, 1396, 1580, 1745, 2792, 3160, 3490, 5584, 6320, 6980, 13960, 27571, 27920, 55142, 110284, 137855, 220568, 275710, 441136, 551420, 1102840, 2205680]

約数ペア:

[(1, 2205680), (2, 1102840), (4, 551420), (5, 441136), (8, 275710), (10, 220568), (16, 137855), (20, 110284), (40, 55142), (79, 27920), (80, 27571), (158, 13960), (316, 6980), (349, 6320), (395, 5584), (632, 3490), (698, 3160), (790, 2792), (1264, 1745), (1396, 1580)]