20838060

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:717

約数の個数: 120

約数和(自身を含む): 68911920

約数和(自身を除く): 48073860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 677, 684, 810, 855, 1026, 1140, 1354, 1539, 1620, 1710, 2031, 2052, 2565, 2708, 3078, 3385, 3420, 4062, 5130, 6093, 6156, 6770, 7695, 8124, 10155, 10260, 12186, 12863, 13540, 15390, 18279, 20310, 24372, 25726, 30465, 30780, 36558, 38589, 40620, 51452, 54837, 60930, 64315, 73116, 77178, 91395, 109674, 115767, 121860, 128630, 154356, 182790, 192945, 219348, 231534, 257260, 274185, 347301, 365580, 385890, 463068, 548370, 578835, 694602, 771780, 1041903, 1096740, 1157670, 1389204, 1736505, 2083806, 2315340, 3473010, 4167612, 5209515, 6946020, 10419030, 20838060]

約数ペア:

[(1, 20838060), (2, 10419030), (3, 6946020), (4, 5209515), (5, 4167612), (6, 3473010), (9, 2315340), (10, 2083806), (12, 1736505), (15, 1389204), (18, 1157670), (19, 1096740), (20, 1041903), (27, 771780), (30, 694602), (36, 578835), (38, 548370), (45, 463068), (54, 385890), (57, 365580), (60, 347301), (76, 274185), (81, 257260), (90, 231534), (95, 219348), (108, 192945), (114, 182790), (135, 154356), (162, 128630), (171, 121860), (180, 115767), (190, 109674), (228, 91395), (270, 77178), (285, 73116), (324, 64315), (342, 60930), (380, 54837), (405, 51452), (513, 40620), (540, 38589), (570, 36558), (677, 30780), (684, 30465), (810, 25726), (855, 24372), (1026, 20310), (1140, 18279), (1354, 15390), (1539, 13540), (1620, 12863), (1710, 12186), (2031, 10260), (2052, 10155), (2565, 8124), (2708, 7695), (3078, 6770), (3385, 6156), (3420, 6093), (4062, 5130)]