681464320

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^2\times {\mathrm{277}}^1$

素因数の和:362

約数の個数: 120

約数和(自身を含む): 1694419452

約数和(自身を除く): 1012955132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 277, 310, 320, 496, 512, 554, 620, 640, 961, 992, 1108, 1240, 1280, 1385, 1922, 1984, 2216, 2480, 2560, 2770, 3844, 3968, 4432, 4805, 4960, 5540, 7688, 7936, 8587, 8864, 9610, 9920, 11080, 15376, 15872, 17174, 17728, 19220, 19840, 22160, 30752, 34348, 35456, 38440, 39680, 42935, 44320, 61504, 68696, 70912, 76880, 79360, 85870, 88640, 123008, 137392, 141824, 153760, 171740, 177280, 246016, 266197, 274784, 307520, 343480, 354560, 492032, 532394, 549568, 615040, 686960, 709120, 1064788, 1099136, 1230080, 1330985, 1373920, 2129576, 2198272, 2460160, 2661970, 2747840, 4259152, 4396544, 5323940, 5495680, 8518304, 10647880, 10991360, 17036608, 21295760, 21982720, 34073216, 42591520, 68146432, 85183040, 136292864, 170366080, 340732160, 681464320]

約数ペア:

[(1, 681464320), (2, 340732160), (4, 170366080), (5, 136292864), (8, 85183040), (10, 68146432), (16, 42591520), (20, 34073216), (31, 21982720), (32, 21295760), (40, 17036608), (62, 10991360), (64, 10647880), (80, 8518304), (124, 5495680), (128, 5323940), (155, 4396544), (160, 4259152), (248, 2747840), (256, 2661970), (277, 2460160), (310, 2198272), (320, 2129576), (496, 1373920), (512, 1330985), (554, 1230080), (620, 1099136), (640, 1064788), (961, 709120), (992, 686960), (1108, 615040), (1240, 549568), (1280, 532394), (1385, 492032), (1922, 354560), (1984, 343480), (2216, 307520), (2480, 274784), (2560, 266197), (2770, 246016), (3844, 177280), (3968, 171740), (4432, 153760), (4805, 141824), (4960, 137392), (5540, 123008), (7688, 88640), (7936, 85870), (8587, 79360), (8864, 76880), (9610, 70912), (9920, 68696), (11080, 61504), (15376, 44320), (15872, 42935), (17174, 39680), (17728, 38440), (19220, 35456), (19840, 34348), (22160, 30752)]