18994680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2777}}^1$

素因数の和:2813

約数の個数: 96

約数和(自身を含む): 65005200

約数和(自身を除く): 46010520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 2777, 3420, 5554, 6840, 8331, 11108, 13885, 16662, 22216, 24993, 27770, 33324, 41655, 49986, 52763, 55540, 66648, 83310, 99972, 105526, 111080, 124965, 158289, 166620, 199944, 211052, 249930, 263815, 316578, 333240, 422104, 474867, 499860, 527630, 633156, 791445, 949734, 999720, 1055260, 1266312, 1582890, 1899468, 2110520, 2374335, 3165780, 3798936, 4748670, 6331560, 9497340, 18994680]

約数ペア:

[(1, 18994680), (2, 9497340), (3, 6331560), (4, 4748670), (5, 3798936), (6, 3165780), (8, 2374335), (9, 2110520), (10, 1899468), (12, 1582890), (15, 1266312), (18, 1055260), (19, 999720), (20, 949734), (24, 791445), (30, 633156), (36, 527630), (38, 499860), (40, 474867), (45, 422104), (57, 333240), (60, 316578), (72, 263815), (76, 249930), (90, 211052), (95, 199944), (114, 166620), (120, 158289), (152, 124965), (171, 111080), (180, 105526), (190, 99972), (228, 83310), (285, 66648), (342, 55540), (360, 52763), (380, 49986), (456, 41655), (570, 33324), (684, 27770), (760, 24993), (855, 22216), (1140, 16662), (1368, 13885), (1710, 11108), (2280, 8331), (2777, 6840), (3420, 5554)]