81519900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3529}}^1$

素因数の和:3564

約数の個数: 144

約数和(自身を含む): 294147840

約数和(自身を除く): 212627940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 25, 28, 30, 33, 35, 42, 44, 50, 55, 60, 66, 70, 75, 77, 84, 100, 105, 110, 132, 140, 150, 154, 165, 175, 210, 220, 231, 275, 300, 308, 330, 350, 385, 420, 462, 525, 550, 660, 700, 770, 825, 924, 1050, 1100, 1155, 1540, 1650, 1925, 2100, 2310, 3300, 3529, 3850, 4620, 5775, 7058, 7700, 10587, 11550, 14116, 17645, 21174, 23100, 24703, 35290, 38819, 42348, 49406, 52935, 70580, 74109, 77638, 88225, 98812, 105870, 116457, 123515, 148218, 155276, 176450, 194095, 211740, 232914, 247030, 264675, 271733, 296436, 352900, 370545, 388190, 465828, 494060, 529350, 543466, 582285, 617575, 741090, 776380, 815199, 970475, 1058700, 1086932, 1164570, 1235150, 1358665, 1482180, 1630398, 1852725, 1940950, 2329140, 2470300, 2717330, 2911425, 3260796, 3705450, 3881900, 4075995, 5434660, 5822850, 6793325, 7410900, 8151990, 11645700, 13586650, 16303980, 20379975, 27173300, 40759950, 81519900]

約数ペア:

[(1, 81519900), (2, 40759950), (3, 27173300), (4, 20379975), (5, 16303980), (6, 13586650), (7, 11645700), (10, 8151990), (11, 7410900), (12, 6793325), (14, 5822850), (15, 5434660), (20, 4075995), (21, 3881900), (22, 3705450), (25, 3260796), (28, 2911425), (30, 2717330), (33, 2470300), (35, 2329140), (42, 1940950), (44, 1852725), (50, 1630398), (55, 1482180), (60, 1358665), (66, 1235150), (70, 1164570), (75, 1086932), (77, 1058700), (84, 970475), (100, 815199), (105, 776380), (110, 741090), (132, 617575), (140, 582285), (150, 543466), (154, 529350), (165, 494060), (175, 465828), (210, 388190), (220, 370545), (231, 352900), (275, 296436), (300, 271733), (308, 264675), (330, 247030), (350, 232914), (385, 211740), (420, 194095), (462, 176450), (525, 155276), (550, 148218), (660, 123515), (700, 116457), (770, 105870), (825, 98812), (924, 88225), (1050, 77638), (1100, 74109), (1155, 70580), (1540, 52935), (1650, 49406), (1925, 42348), (2100, 38819), (2310, 35290), (3300, 24703), (3529, 23100), (3850, 21174), (4620, 17645), (5775, 14116), (7058, 11550), (7700, 10587)]