897214220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{90263}}^1$

素因数の和:90350

約数の個数: 48

約数和(自身を含む): 2183666688

約数和(自身を除く): 1286452468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 90263, 180526, 361052, 451315, 631841, 902630, 1263682, 1805260, 2527364, 3159205, 6318410, 6408673, 12636820, 12817346, 25634692, 32043365, 44860711, 64086730, 89721422, 128173460, 179442844, 224303555, 448607110, 897214220]

約数ペア:

[(1, 897214220), (2, 448607110), (4, 224303555), (5, 179442844), (7, 128173460), (10, 89721422), (14, 64086730), (20, 44860711), (28, 32043365), (35, 25634692), (70, 12817346), (71, 12636820), (140, 6408673), (142, 6318410), (284, 3159205), (355, 2527364), (497, 1805260), (710, 1263682), (994, 902630), (1420, 631841), (1988, 451315), (2485, 361052), (4970, 180526), (9940, 90263)]