20574540

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5443}}^1$

素因数の和:5468

約数の個数: 96

約数和(自身を含む): 73167360

約数和(自身を除く): 52592820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5443, 10886, 16329, 21772, 27215, 32658, 38101, 48987, 54430, 65316, 76202, 81645, 97974, 108860, 114303, 146961, 152404, 163290, 190505, 195948, 228606, 244935, 293922, 326580, 342909, 381010, 457212, 489870, 571515, 587844, 685818, 734805, 762020, 979740, 1028727, 1143030, 1371636, 1469610, 1714545, 2057454, 2286060, 2939220, 3429090, 4114908, 5143635, 6858180, 10287270, 20574540]

約数ペア:

[(1, 20574540), (2, 10287270), (3, 6858180), (4, 5143635), (5, 4114908), (6, 3429090), (7, 2939220), (9, 2286060), (10, 2057454), (12, 1714545), (14, 1469610), (15, 1371636), (18, 1143030), (20, 1028727), (21, 979740), (27, 762020), (28, 734805), (30, 685818), (35, 587844), (36, 571515), (42, 489870), (45, 457212), (54, 381010), (60, 342909), (63, 326580), (70, 293922), (84, 244935), (90, 228606), (105, 195948), (108, 190505), (126, 163290), (135, 152404), (140, 146961), (180, 114303), (189, 108860), (210, 97974), (252, 81645), (270, 76202), (315, 65316), (378, 54430), (420, 48987), (540, 38101), (630, 32658), (756, 27215), (945, 21772), (1260, 16329), (1890, 10886), (3780, 5443)]