18758880

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{1861}}^1$

素因数の和:1889

約数の個数: 144

約数和(自身を含む): 73198944

約数和(自身を除く): 54440064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 1861, 2016, 2520, 3360, 3722, 5040, 5583, 7444, 9305, 10080, 11166, 13027, 14888, 16749, 18610, 22332, 26054, 27915, 29776, 33498, 37220, 39081, 44664, 52108, 55830, 59552, 65135, 66996, 74440, 78162, 83745, 89328, 104216, 111660, 117243, 130270, 133992, 148880, 156324, 167490, 178656, 195405, 208432, 223320, 234486, 260540, 267984, 297760, 312648, 334980, 390810, 416864, 446640, 468972, 521080, 535968, 586215, 625296, 669960, 781620, 893280, 937944, 1042160, 1172430, 1250592, 1339920, 1563240, 1875888, 2084320, 2344860, 2679840, 3126480, 3751776, 4689720, 6252960, 9379440, 18758880]

約数ペア:

[(1, 18758880), (2, 9379440), (3, 6252960), (4, 4689720), (5, 3751776), (6, 3126480), (7, 2679840), (8, 2344860), (9, 2084320), (10, 1875888), (12, 1563240), (14, 1339920), (15, 1250592), (16, 1172430), (18, 1042160), (20, 937944), (21, 893280), (24, 781620), (28, 669960), (30, 625296), (32, 586215), (35, 535968), (36, 521080), (40, 468972), (42, 446640), (45, 416864), (48, 390810), (56, 334980), (60, 312648), (63, 297760), (70, 267984), (72, 260540), (80, 234486), (84, 223320), (90, 208432), (96, 195405), (105, 178656), (112, 167490), (120, 156324), (126, 148880), (140, 133992), (144, 130270), (160, 117243), (168, 111660), (180, 104216), (210, 89328), (224, 83745), (240, 78162), (252, 74440), (280, 66996), (288, 65135), (315, 59552), (336, 55830), (360, 52108), (420, 44664), (480, 39081), (504, 37220), (560, 33498), (630, 29776), (672, 27915), (720, 26054), (840, 22332), (1008, 18610), (1120, 16749), (1260, 14888), (1440, 13027), (1680, 11166), (1861, 10080), (2016, 9305), (2520, 7444), (3360, 5583), (3722, 5040)]