1861681280

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{1049}}^1$

素因数の和:1174

約数の個数: 128

約数和(自身を含む): 4626720000

約数和(自身を除く): 2765038720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 59, 64, 80, 94, 118, 128, 160, 188, 235, 236, 295, 320, 376, 470, 472, 590, 640, 752, 940, 944, 1049, 1180, 1504, 1880, 1888, 2098, 2360, 2773, 3008, 3760, 3776, 4196, 4720, 5245, 5546, 6016, 7520, 7552, 8392, 9440, 10490, 11092, 13865, 15040, 16784, 18880, 20980, 22184, 27730, 30080, 33568, 37760, 41960, 44368, 49303, 55460, 61891, 67136, 83920, 88736, 98606, 110920, 123782, 134272, 167840, 177472, 197212, 221840, 246515, 247564, 309455, 335680, 354944, 394424, 443680, 493030, 495128, 618910, 671360, 788848, 887360, 986060, 990256, 1237820, 1577696, 1774720, 1972120, 1980512, 2475640, 2908877, 3155392, 3944240, 3961024, 4951280, 5817754, 6310784, 7888480, 7922048, 9902560, 11635508, 14544385, 15776960, 19805120, 23271016, 29088770, 31553920, 39610240, 46542032, 58177540, 93084064, 116355080, 186168128, 232710160, 372336256, 465420320, 930840640, 1861681280]

約数ペア:

[(1, 1861681280), (2, 930840640), (4, 465420320), (5, 372336256), (8, 232710160), (10, 186168128), (16, 116355080), (20, 93084064), (32, 58177540), (40, 46542032), (47, 39610240), (59, 31553920), (64, 29088770), (80, 23271016), (94, 19805120), (118, 15776960), (128, 14544385), (160, 11635508), (188, 9902560), (235, 7922048), (236, 7888480), (295, 6310784), (320, 5817754), (376, 4951280), (470, 3961024), (472, 3944240), (590, 3155392), (640, 2908877), (752, 2475640), (940, 1980512), (944, 1972120), (1049, 1774720), (1180, 1577696), (1504, 1237820), (1880, 990256), (1888, 986060), (2098, 887360), (2360, 788848), (2773, 671360), (3008, 618910), (3760, 495128), (3776, 493030), (4196, 443680), (4720, 394424), (5245, 354944), (5546, 335680), (6016, 309455), (7520, 247564), (7552, 246515), (8392, 221840), (9440, 197212), (10490, 177472), (11092, 167840), (13865, 134272), (15040, 123782), (16784, 110920), (18880, 98606), (20980, 88736), (22184, 83920), (27730, 67136), (30080, 61891), (33568, 55460), (37760, 49303), (41960, 44368)]