80810820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:294

約数の個数: 144

約数和(自身を含む): 257690160

約数和(自身を除く): 176879340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 113, 116, 137, 145, 174, 180, 226, 261, 274, 290, 339, 348, 411, 435, 452, 522, 548, 565, 580, 678, 685, 822, 870, 1017, 1044, 1130, 1233, 1305, 1356, 1370, 1644, 1695, 1740, 2034, 2055, 2260, 2466, 2610, 2740, 3277, 3390, 3973, 4068, 4110, 4932, 5085, 5220, 6165, 6554, 6780, 7946, 8220, 9831, 10170, 11919, 12330, 13108, 15481, 15892, 16385, 19662, 19865, 20340, 23838, 24660, 29493, 30962, 32770, 35757, 39324, 39730, 46443, 47676, 49155, 58986, 59595, 61924, 65540, 71514, 77405, 79460, 92886, 98310, 117972, 119190, 139329, 143028, 147465, 154810, 178785, 185772, 196620, 232215, 238380, 278658, 294930, 309620, 357570, 448949, 464430, 557316, 589860, 696645, 715140, 897898, 928860, 1346847, 1393290, 1795796, 2244745, 2693694, 2786580, 4040541, 4489490, 5387388, 6734235, 8081082, 8978980, 13468470, 16162164, 20202705, 26936940, 40405410, 80810820]

約数ペア:

[(1, 80810820), (2, 40405410), (3, 26936940), (4, 20202705), (5, 16162164), (6, 13468470), (9, 8978980), (10, 8081082), (12, 6734235), (15, 5387388), (18, 4489490), (20, 4040541), (29, 2786580), (30, 2693694), (36, 2244745), (45, 1795796), (58, 1393290), (60, 1346847), (87, 928860), (90, 897898), (113, 715140), (116, 696645), (137, 589860), (145, 557316), (174, 464430), (180, 448949), (226, 357570), (261, 309620), (274, 294930), (290, 278658), (339, 238380), (348, 232215), (411, 196620), (435, 185772), (452, 178785), (522, 154810), (548, 147465), (565, 143028), (580, 139329), (678, 119190), (685, 117972), (822, 98310), (870, 92886), (1017, 79460), (1044, 77405), (1130, 71514), (1233, 65540), (1305, 61924), (1356, 59595), (1370, 58986), (1644, 49155), (1695, 47676), (1740, 46443), (2034, 39730), (2055, 39324), (2260, 35757), (2466, 32770), (2610, 30962), (2740, 29493), (3277, 24660), (3390, 23838), (3973, 20340), (4068, 19865), (4110, 19662), (4932, 16385), (5085, 15892), (5220, 15481), (6165, 13108), (6554, 12330), (6780, 11919), (7946, 10170), (8220, 9831)]