85687420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 234118080

約数和(自身を除く): 148430660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 70, 89, 91, 92, 115, 130, 140, 161, 178, 182, 230, 260, 299, 322, 356, 364, 445, 455, 460, 529, 598, 623, 644, 805, 890, 910, 1058, 1157, 1196, 1246, 1495, 1610, 1780, 1820, 2047, 2093, 2116, 2314, 2492, 2645, 2990, 3115, 3220, 3703, 4094, 4186, 4628, 5290, 5785, 5980, 6230, 6877, 7406, 8099, 8188, 8372, 10235, 10465, 10580, 11570, 12460, 13754, 14329, 14812, 16198, 18515, 20470, 20930, 23140, 26611, 27508, 28658, 32396, 34385, 37030, 40495, 40940, 41860, 47081, 48139, 53222, 57316, 68770, 71645, 74060, 80990, 94162, 96278, 106444, 133055, 137540, 143290, 161980, 186277, 188324, 192556, 235405, 240695, 266110, 286580, 329567, 372554, 470810, 481390, 532220, 612053, 659134, 745108, 931385, 941620, 962780, 1224106, 1318268, 1647835, 1862770, 2448212, 3060265, 3295670, 3725540, 4284371, 6120530, 6591340, 8568742, 12241060, 17137484, 21421855, 42843710, 85687420]

約数ペア:

[(1, 85687420), (2, 42843710), (4, 21421855), (5, 17137484), (7, 12241060), (10, 8568742), (13, 6591340), (14, 6120530), (20, 4284371), (23, 3725540), (26, 3295670), (28, 3060265), (35, 2448212), (46, 1862770), (52, 1647835), (65, 1318268), (70, 1224106), (89, 962780), (91, 941620), (92, 931385), (115, 745108), (130, 659134), (140, 612053), (161, 532220), (178, 481390), (182, 470810), (230, 372554), (260, 329567), (299, 286580), (322, 266110), (356, 240695), (364, 235405), (445, 192556), (455, 188324), (460, 186277), (529, 161980), (598, 143290), (623, 137540), (644, 133055), (805, 106444), (890, 96278), (910, 94162), (1058, 80990), (1157, 74060), (1196, 71645), (1246, 68770), (1495, 57316), (1610, 53222), (1780, 48139), (1820, 47081), (2047, 41860), (2093, 40940), (2116, 40495), (2314, 37030), (2492, 34385), (2645, 32396), (2990, 28658), (3115, 27508), (3220, 26611), (3703, 23140), (4094, 20930), (4186, 20470), (4628, 18515), (5290, 16198), (5785, 14812), (5980, 14329), (6230, 13754), (6877, 12460), (7406, 11570), (8099, 10580), (8188, 10465), (8372, 10235)]