281400640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1493}}^1$

素因数の和:1560

約数の個数: 112

約数和(自身を含む): 728593920

約数和(自身を除く): 447193280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 589, 608, 620, 760, 992, 1178, 1216, 1240, 1493, 1520, 1984, 2356, 2480, 2945, 2986, 3040, 4712, 4960, 5890, 5972, 6080, 7465, 9424, 9920, 11780, 11944, 14930, 18848, 23560, 23888, 28367, 29860, 37696, 46283, 47120, 47776, 56734, 59720, 92566, 94240, 95552, 113468, 119440, 141835, 185132, 188480, 226936, 231415, 238880, 283670, 370264, 453872, 462830, 477760, 567340, 740528, 879377, 907744, 925660, 1134680, 1481056, 1758754, 1815488, 1851320, 2269360, 2962112, 3517508, 3702640, 4396885, 4538720, 7035016, 7405280, 8793770, 9077440, 14070032, 14810560, 17587540, 28140064, 35175080, 56280128, 70350160, 140700320, 281400640]

約数ペア:

[(1, 281400640), (2, 140700320), (4, 70350160), (5, 56280128), (8, 35175080), (10, 28140064), (16, 17587540), (19, 14810560), (20, 14070032), (31, 9077440), (32, 8793770), (38, 7405280), (40, 7035016), (62, 4538720), (64, 4396885), (76, 3702640), (80, 3517508), (95, 2962112), (124, 2269360), (152, 1851320), (155, 1815488), (160, 1758754), (190, 1481056), (248, 1134680), (304, 925660), (310, 907744), (320, 879377), (380, 740528), (496, 567340), (589, 477760), (608, 462830), (620, 453872), (760, 370264), (992, 283670), (1178, 238880), (1216, 231415), (1240, 226936), (1493, 188480), (1520, 185132), (1984, 141835), (2356, 119440), (2480, 113468), (2945, 95552), (2986, 94240), (3040, 92566), (4712, 59720), (4960, 56734), (5890, 47776), (5972, 47120), (6080, 46283), (7465, 37696), (9424, 29860), (9920, 28367), (11780, 23888), (11944, 23560), (14930, 18848)]