640983005712

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20512769}}^1$

素因数の和:20512821

約数の個数: 120

約数和(自身を含む): 2116261455360

約数和(自身を除く): 1475278449648

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 56, 62, 63, 72, 84, 93, 112, 124, 126, 144, 168, 186, 217, 248, 252, 279, 336, 372, 434, 496, 504, 558, 651, 744, 868, 1008, 1116, 1302, 1488, 1736, 1953, 2232, 2604, 3472, 3906, 4464, 5208, 7812, 10416, 15624, 31248, 20512769, 41025538, 61538307, 82051076, 123076614, 143589383, 164102152, 184614921, 246153228, 287178766, 328204304, 369229842, 430768149, 492306456, 574357532, 635895839, 738459684, 861536298, 984612912, 1148715064, 1271791678, 1292304447, 1476919368, 1723072596, 1907687517, 2297430128, 2543583356, 2584608894, 2953838736, 3446145192, 3815375034, 4451270873, 5087166712, 5169217788, 5723062551, 6892290384, 7630750068, 8902541746, 10174333424, 10338435576, 11446125102, 13353812619, 15261500136, 17805083492, 20676871152, 22892250204, 26707625238, 30523000272, 35610166984, 40061437857, 45784500408, 53415250476, 71220333968, 80122875714, 91569000816, 106830500952, 160245751428, 213661001904, 320491502856, 640983005712]

約数ペア:

[(1, 640983005712), (2, 320491502856), (3, 213661001904), (4, 160245751428), (6, 106830500952), (7, 91569000816), (8, 80122875714), (9, 71220333968), (12, 53415250476), (14, 45784500408), (16, 40061437857), (18, 35610166984), (21, 30523000272), (24, 26707625238), (28, 22892250204), (31, 20676871152), (36, 17805083492), (42, 15261500136), (48, 13353812619), (56, 11446125102), (62, 10338435576), (63, 10174333424), (72, 8902541746), (84, 7630750068), (93, 6892290384), (112, 5723062551), (124, 5169217788), (126, 5087166712), (144, 4451270873), (168, 3815375034), (186, 3446145192), (217, 2953838736), (248, 2584608894), (252, 2543583356), (279, 2297430128), (336, 1907687517), (372, 1723072596), (434, 1476919368), (496, 1292304447), (504, 1271791678), (558, 1148715064), (651, 984612912), (744, 861536298), (868, 738459684), (1008, 635895839), (1116, 574357532), (1302, 492306456), (1488, 430768149), (1736, 369229842), (1953, 328204304), (2232, 287178766), (2604, 246153228), (3472, 184614921), (3906, 164102152), (4464, 143589383), (5208, 123076614), (7812, 82051076), (10416, 61538307), (15624, 41025538), (31248, 20512769)]