1680289280

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^2\times {\mathrm{683}}^1$

素因数の和:768

約数の個数: 120

約数和(自身を含む): 4169003256

約数和(自身を除く): 2488713976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 683, 961, 992, 1240, 1280, 1366, 1922, 1984, 2480, 2560, 2732, 3415, 3844, 3968, 4805, 4960, 5464, 6830, 7688, 7936, 9610, 9920, 10928, 13660, 15376, 15872, 19220, 19840, 21173, 21856, 27320, 30752, 38440, 39680, 42346, 43712, 54640, 61504, 76880, 79360, 84692, 87424, 105865, 109280, 123008, 153760, 169384, 174848, 211730, 218560, 246016, 307520, 338768, 349696, 423460, 437120, 492032, 615040, 656363, 677536, 846920, 874240, 1230080, 1312726, 1355072, 1693840, 1748480, 2460160, 2625452, 2710144, 3281815, 3387680, 5250904, 5420288, 6563630, 6775360, 10501808, 10840576, 13127260, 13550720, 21003616, 26254520, 27101440, 42007232, 52509040, 54202880, 84014464, 105018080, 168028928, 210036160, 336057856, 420072320, 840144640, 1680289280]

約数ペア:

[(1, 1680289280), (2, 840144640), (4, 420072320), (5, 336057856), (8, 210036160), (10, 168028928), (16, 105018080), (20, 84014464), (31, 54202880), (32, 52509040), (40, 42007232), (62, 27101440), (64, 26254520), (80, 21003616), (124, 13550720), (128, 13127260), (155, 10840576), (160, 10501808), (248, 6775360), (256, 6563630), (310, 5420288), (320, 5250904), (496, 3387680), (512, 3281815), (620, 2710144), (640, 2625452), (683, 2460160), (961, 1748480), (992, 1693840), (1240, 1355072), (1280, 1312726), (1366, 1230080), (1922, 874240), (1984, 846920), (2480, 677536), (2560, 656363), (2732, 615040), (3415, 492032), (3844, 437120), (3968, 423460), (4805, 349696), (4960, 338768), (5464, 307520), (6830, 246016), (7688, 218560), (7936, 211730), (9610, 174848), (9920, 169384), (10928, 153760), (13660, 123008), (15376, 109280), (15872, 105865), (19220, 87424), (19840, 84692), (21173, 79360), (21856, 76880), (27320, 61504), (30752, 54640), (38440, 43712), (39680, 42346)]