20994120

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2777}}^1$

素因数の和:2804

約数の個数: 128

約数和(自身を含む): 80006400

約数和(自身を除く): 59012280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2777, 3780, 5554, 7560, 8331, 11108, 13885, 16662, 19439, 22216, 24993, 27770, 33324, 38878, 41655, 49986, 55540, 58317, 66648, 74979, 77756, 83310, 97195, 99972, 111080, 116634, 124965, 149958, 155512, 166620, 174951, 194390, 199944, 233268, 249930, 291585, 299916, 333240, 349902, 374895, 388780, 466536, 499860, 524853, 583170, 599832, 699804, 749790, 777560, 874755, 999720, 1049706, 1166340, 1399608, 1499580, 1749510, 2099412, 2332680, 2624265, 2999160, 3499020, 4198824, 5248530, 6998040, 10497060, 20994120]

約数ペア:

[(1, 20994120), (2, 10497060), (3, 6998040), (4, 5248530), (5, 4198824), (6, 3499020), (7, 2999160), (8, 2624265), (9, 2332680), (10, 2099412), (12, 1749510), (14, 1499580), (15, 1399608), (18, 1166340), (20, 1049706), (21, 999720), (24, 874755), (27, 777560), (28, 749790), (30, 699804), (35, 599832), (36, 583170), (40, 524853), (42, 499860), (45, 466536), (54, 388780), (56, 374895), (60, 349902), (63, 333240), (70, 299916), (72, 291585), (84, 249930), (90, 233268), (105, 199944), (108, 194390), (120, 174951), (126, 166620), (135, 155512), (140, 149958), (168, 124965), (180, 116634), (189, 111080), (210, 99972), (216, 97195), (252, 83310), (270, 77756), (280, 74979), (315, 66648), (360, 58317), (378, 55540), (420, 49986), (504, 41655), (540, 38878), (630, 33324), (756, 27770), (840, 24993), (945, 22216), (1080, 19439), (1260, 16662), (1512, 13885), (1890, 11108), (2520, 8331), (2777, 7560), (3780, 5554)]