399978120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5659}}^1$

素因数の和:5723

約数の個数: 128

約数和(自身を含む): 1304064000

約数和(自身を除く): 904085880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 31, 38, 40, 57, 60, 62, 76, 93, 95, 114, 120, 124, 152, 155, 186, 190, 228, 248, 285, 310, 372, 380, 456, 465, 570, 589, 620, 744, 760, 930, 1140, 1178, 1240, 1767, 1860, 2280, 2356, 2945, 3534, 3720, 4712, 5659, 5890, 7068, 8835, 11318, 11780, 14136, 16977, 17670, 22636, 23560, 28295, 33954, 35340, 45272, 56590, 67908, 70680, 84885, 107521, 113180, 135816, 169770, 175429, 215042, 226360, 322563, 339540, 350858, 430084, 526287, 537605, 645126, 679080, 701716, 860168, 877145, 1052574, 1075210, 1290252, 1403432, 1612815, 1754290, 2105148, 2150420, 2580504, 2631435, 3225630, 3333151, 3508580, 4210296, 4300840, 5262870, 6451260, 6666302, 7017160, 9999453, 10525740, 12902520, 13332604, 16665755, 19998906, 21051480, 26665208, 33331510, 39997812, 49997265, 66663020, 79995624, 99994530, 133326040, 199989060, 399978120]

約数ペア:

[(1, 399978120), (2, 199989060), (3, 133326040), (4, 99994530), (5, 79995624), (6, 66663020), (8, 49997265), (10, 39997812), (12, 33331510), (15, 26665208), (19, 21051480), (20, 19998906), (24, 16665755), (30, 13332604), (31, 12902520), (38, 10525740), (40, 9999453), (57, 7017160), (60, 6666302), (62, 6451260), (76, 5262870), (93, 4300840), (95, 4210296), (114, 3508580), (120, 3333151), (124, 3225630), (152, 2631435), (155, 2580504), (186, 2150420), (190, 2105148), (228, 1754290), (248, 1612815), (285, 1403432), (310, 1290252), (372, 1075210), (380, 1052574), (456, 877145), (465, 860168), (570, 701716), (589, 679080), (620, 645126), (744, 537605), (760, 526287), (930, 430084), (1140, 350858), (1178, 339540), (1240, 322563), (1767, 226360), (1860, 215042), (2280, 175429), (2356, 169770), (2945, 135816), (3534, 113180), (3720, 107521), (4712, 84885), (5659, 70680), (5890, 67908), (7068, 56590), (8835, 45272), (11318, 35340), (11780, 33954), (14136, 28295), (16977, 23560), (17670, 22636)]