81990360

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{853}}^1$

素因数の和:962

約数の個数: 128

約数和(自身を含む): 276696000

約数和(自身を除く): 194705640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 89, 90, 108, 120, 135, 178, 180, 216, 267, 270, 356, 360, 445, 534, 540, 712, 801, 853, 890, 1068, 1080, 1335, 1602, 1706, 1780, 2136, 2403, 2559, 2670, 3204, 3412, 3560, 4005, 4265, 4806, 5118, 5340, 6408, 6824, 7677, 8010, 8530, 9612, 10236, 10680, 12015, 12795, 15354, 16020, 17060, 19224, 20472, 23031, 24030, 25590, 30708, 32040, 34120, 38385, 46062, 48060, 51180, 61416, 75917, 76770, 92124, 96120, 102360, 115155, 151834, 153540, 184248, 227751, 230310, 303668, 307080, 379585, 455502, 460620, 607336, 683253, 759170, 911004, 921240, 1138755, 1366506, 1518340, 1822008, 2049759, 2277510, 2733012, 3036680, 3416265, 4099518, 4555020, 5466024, 6832530, 8199036, 9110040, 10248795, 13665060, 16398072, 20497590, 27330120, 40995180, 81990360]

約数ペア:

[(1, 81990360), (2, 40995180), (3, 27330120), (4, 20497590), (5, 16398072), (6, 13665060), (8, 10248795), (9, 9110040), (10, 8199036), (12, 6832530), (15, 5466024), (18, 4555020), (20, 4099518), (24, 3416265), (27, 3036680), (30, 2733012), (36, 2277510), (40, 2049759), (45, 1822008), (54, 1518340), (60, 1366506), (72, 1138755), (89, 921240), (90, 911004), (108, 759170), (120, 683253), (135, 607336), (178, 460620), (180, 455502), (216, 379585), (267, 307080), (270, 303668), (356, 230310), (360, 227751), (445, 184248), (534, 153540), (540, 151834), (712, 115155), (801, 102360), (853, 96120), (890, 92124), (1068, 76770), (1080, 75917), (1335, 61416), (1602, 51180), (1706, 48060), (1780, 46062), (2136, 38385), (2403, 34120), (2559, 32040), (2670, 30708), (3204, 25590), (3412, 24030), (3560, 23031), (4005, 20472), (4265, 19224), (4806, 17060), (5118, 16020), (5340, 15354), (6408, 12795), (6824, 12015), (7677, 10680), (8010, 10236), (8530, 9612)]