81967050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:629

約数の個数: 144

約数和(自身を含む): 248957280

約数和(自身を除く): 166990230

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 29, 30, 33, 45, 50, 55, 58, 66, 75, 87, 90, 99, 110, 145, 150, 165, 174, 198, 225, 261, 275, 290, 319, 330, 435, 450, 495, 522, 550, 571, 638, 725, 825, 870, 957, 990, 1142, 1305, 1450, 1595, 1650, 1713, 1914, 2175, 2475, 2610, 2855, 2871, 3190, 3426, 4350, 4785, 4950, 5139, 5710, 5742, 6281, 6525, 7975, 8565, 9570, 10278, 12562, 13050, 14275, 14355, 15950, 16559, 17130, 18843, 23925, 25695, 28550, 28710, 31405, 33118, 37686, 42825, 47850, 49677, 51390, 56529, 62810, 71775, 82795, 85650, 94215, 99354, 113058, 128475, 143550, 149031, 157025, 165590, 182149, 188430, 248385, 256950, 282645, 298062, 314050, 364298, 413975, 471075, 496770, 546447, 565290, 745155, 827950, 910745, 942150, 1092894, 1241925, 1413225, 1490310, 1639341, 1821490, 2483850, 2732235, 2826450, 3278682, 3725775, 4553725, 5464470, 7451550, 8196705, 9107450, 13661175, 16393410, 27322350, 40983525, 81967050]

約数ペア:

[(1, 81967050), (2, 40983525), (3, 27322350), (5, 16393410), (6, 13661175), (9, 9107450), (10, 8196705), (11, 7451550), (15, 5464470), (18, 4553725), (22, 3725775), (25, 3278682), (29, 2826450), (30, 2732235), (33, 2483850), (45, 1821490), (50, 1639341), (55, 1490310), (58, 1413225), (66, 1241925), (75, 1092894), (87, 942150), (90, 910745), (99, 827950), (110, 745155), (145, 565290), (150, 546447), (165, 496770), (174, 471075), (198, 413975), (225, 364298), (261, 314050), (275, 298062), (290, 282645), (319, 256950), (330, 248385), (435, 188430), (450, 182149), (495, 165590), (522, 157025), (550, 149031), (571, 143550), (638, 128475), (725, 113058), (825, 99354), (870, 94215), (957, 85650), (990, 82795), (1142, 71775), (1305, 62810), (1450, 56529), (1595, 51390), (1650, 49677), (1713, 47850), (1914, 42825), (2175, 37686), (2475, 33118), (2610, 31405), (2855, 28710), (2871, 28550), (3190, 25695), (3426, 23925), (4350, 18843), (4785, 17130), (4950, 16559), (5139, 15950), (5710, 14355), (5742, 14275), (6281, 13050), (6525, 12562), (7975, 10278), (8565, 9570)]