18676980

素因数分解:

$2^2\times 3^7\times 5^1\times 7^1\times {\mathrm{61}}^1$

素因数の和:98

約数の個数: 192

約数和(自身を含む): 68328960

約数和(自身を除く): 49651980

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, 61, 63, 70, 81, 84, 90, 105, 108, 122, 126, 135, 140, 162, 180, 183, 189, 210, 243, 244, 252, 270, 305, 315, 324, 366, 378, 405, 420, 427, 486, 540, 549, 567, 610, 630, 729, 732, 756, 810, 854, 915, 945, 972, 1098, 1134, 1215, 1220, 1260, 1281, 1458, 1620, 1647, 1701, 1708, 1830, 1890, 2135, 2187, 2196, 2268, 2430, 2562, 2745, 2835, 2916, 3294, 3402, 3645, 3660, 3780, 3843, 4270, 4374, 4860, 4941, 5103, 5124, 5490, 5670, 6405, 6588, 6804, 7290, 7686, 8235, 8505, 8540, 8748, 9882, 10206, 10935, 10980, 11340, 11529, 12810, 14580, 14823, 15309, 15372, 16470, 17010, 19215, 19764, 20412, 21870, 23058, 24705, 25515, 25620, 29646, 30618, 32940, 34020, 34587, 38430, 43740, 44469, 46116, 49410, 51030, 57645, 59292, 61236, 69174, 74115, 76545, 76860, 88938, 98820, 102060, 103761, 115290, 133407, 138348, 148230, 153090, 172935, 177876, 207522, 222345, 230580, 266814, 296460, 306180, 311283, 345870, 415044, 444690, 518805, 533628, 622566, 667035, 691740, 889380, 933849, 1037610, 1245132, 1334070, 1556415, 1867698, 2075220, 2668140, 3112830, 3735396, 4669245, 6225660, 9338490, 18676980]

約数ペア:

[(1, 18676980), (2, 9338490), (3, 6225660), (4, 4669245), (5, 3735396), (6, 3112830), (7, 2668140), (9, 2075220), (10, 1867698), (12, 1556415), (14, 1334070), (15, 1245132), (18, 1037610), (20, 933849), (21, 889380), (27, 691740), (28, 667035), (30, 622566), (35, 533628), (36, 518805), (42, 444690), (45, 415044), (54, 345870), (60, 311283), (61, 306180), (63, 296460), (70, 266814), (81, 230580), (84, 222345), (90, 207522), (105, 177876), (108, 172935), (122, 153090), (126, 148230), (135, 138348), (140, 133407), (162, 115290), (180, 103761), (183, 102060), (189, 98820), (210, 88938), (243, 76860), (244, 76545), (252, 74115), (270, 69174), (305, 61236), (315, 59292), (324, 57645), (366, 51030), (378, 49410), (405, 46116), (420, 44469), (427, 43740), (486, 38430), (540, 34587), (549, 34020), (567, 32940), (610, 30618), (630, 29646), (729, 25620), (732, 25515), (756, 24705), (810, 23058), (854, 21870), (915, 20412), (945, 19764), (972, 19215), (1098, 17010), (1134, 16470), (1215, 15372), (1220, 15309), (1260, 14823), (1281, 14580), (1458, 12810), (1620, 11529), (1647, 11340), (1701, 10980), (1708, 10935), (1830, 10206), (1890, 9882), (2135, 8748), (2187, 8540), (2196, 8505), (2268, 8235), (2430, 7686), (2562, 7290), (2745, 6804), (2835, 6588), (2916, 6405), (3294, 5670), (3402, 5490), (3645, 5124), (3660, 5103), (3780, 4941), (3843, 4860), (4270, 4374)]