18619740

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{29}}^2\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 144

約数和(自身を含む): 61457760

約数和(自身を除く): 42838020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 41, 45, 54, 58, 60, 82, 87, 90, 108, 116, 123, 135, 145, 164, 174, 180, 205, 246, 261, 270, 290, 348, 369, 410, 435, 492, 522, 540, 580, 615, 738, 783, 820, 841, 870, 1044, 1107, 1189, 1230, 1305, 1476, 1566, 1682, 1740, 1845, 2214, 2378, 2460, 2523, 2610, 3132, 3364, 3567, 3690, 3915, 4205, 4428, 4756, 5046, 5220, 5535, 5945, 7134, 7380, 7569, 7830, 8410, 10092, 10701, 11070, 11890, 12615, 14268, 15138, 15660, 16820, 17835, 21402, 22140, 22707, 23780, 25230, 30276, 32103, 34481, 35670, 37845, 42804, 45414, 50460, 53505, 64206, 68962, 71340, 75690, 90828, 103443, 107010, 113535, 128412, 137924, 151380, 160515, 172405, 206886, 214020, 227070, 310329, 321030, 344810, 413772, 454140, 517215, 620658, 642060, 689620, 930987, 1034430, 1241316, 1551645, 1861974, 2068860, 3103290, 3723948, 4654935, 6206580, 9309870, 18619740]

約数ペア:

[(1, 18619740), (2, 9309870), (3, 6206580), (4, 4654935), (5, 3723948), (6, 3103290), (9, 2068860), (10, 1861974), (12, 1551645), (15, 1241316), (18, 1034430), (20, 930987), (27, 689620), (29, 642060), (30, 620658), (36, 517215), (41, 454140), (45, 413772), (54, 344810), (58, 321030), (60, 310329), (82, 227070), (87, 214020), (90, 206886), (108, 172405), (116, 160515), (123, 151380), (135, 137924), (145, 128412), (164, 113535), (174, 107010), (180, 103443), (205, 90828), (246, 75690), (261, 71340), (270, 68962), (290, 64206), (348, 53505), (369, 50460), (410, 45414), (435, 42804), (492, 37845), (522, 35670), (540, 34481), (580, 32103), (615, 30276), (738, 25230), (783, 23780), (820, 22707), (841, 22140), (870, 21402), (1044, 17835), (1107, 16820), (1189, 15660), (1230, 15138), (1305, 14268), (1476, 12615), (1566, 11890), (1682, 11070), (1740, 10701), (1845, 10092), (2214, 8410), (2378, 7830), (2460, 7569), (2523, 7380), (2610, 7134), (3132, 5945), (3364, 5535), (3567, 5220), (3690, 5046), (3915, 4756), (4205, 4428)]