1380456880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{38261}}^1$

素因数の和:38326

約数の個数: 80

約数和(自身を含む): 3586832928

約数和(自身を除く): 2206376048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 328, 410, 440, 451, 656, 820, 880, 902, 1640, 1804, 2255, 3280, 3608, 4510, 7216, 9020, 18040, 36080, 38261, 76522, 153044, 191305, 306088, 382610, 420871, 612176, 765220, 841742, 1530440, 1568701, 1683484, 2104355, 3060880, 3137402, 3366968, 4208710, 6274804, 6733936, 7843505, 8417420, 12549608, 15687010, 16834840, 17255711, 25099216, 31374020, 33669680, 34511422, 62748040, 69022844, 86278555, 125496080, 138045688, 172557110, 276091376, 345114220, 690228440, 1380456880]

約数ペア:

[(1, 1380456880), (2, 690228440), (4, 345114220), (5, 276091376), (8, 172557110), (10, 138045688), (11, 125496080), (16, 86278555), (20, 69022844), (22, 62748040), (40, 34511422), (41, 33669680), (44, 31374020), (55, 25099216), (80, 17255711), (82, 16834840), (88, 15687010), (110, 12549608), (164, 8417420), (176, 7843505), (205, 6733936), (220, 6274804), (328, 4208710), (410, 3366968), (440, 3137402), (451, 3060880), (656, 2104355), (820, 1683484), (880, 1568701), (902, 1530440), (1640, 841742), (1804, 765220), (2255, 612176), (3280, 420871), (3608, 382610), (4510, 306088), (7216, 191305), (9020, 153044), (18040, 76522), (36080, 38261)]