261335880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2939}}^1$

素因数の和:2988

約数の個数: 192

約数和(自身を含む): 963144000

約数和(自身を除く): 701808120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 52, 57, 60, 65, 72, 76, 78, 90, 95, 104, 114, 117, 120, 130, 152, 156, 171, 180, 190, 195, 228, 234, 247, 260, 285, 312, 342, 360, 380, 390, 456, 468, 494, 520, 570, 585, 684, 741, 760, 780, 855, 936, 988, 1140, 1170, 1235, 1368, 1482, 1560, 1710, 1976, 2223, 2280, 2340, 2470, 2939, 2964, 3420, 3705, 4446, 4680, 4940, 5878, 5928, 6840, 7410, 8817, 8892, 9880, 11115, 11756, 14695, 14820, 17634, 17784, 22230, 23512, 26451, 29390, 29640, 35268, 38207, 44085, 44460, 52902, 55841, 58780, 70536, 76414, 88170, 88920, 105804, 111682, 114621, 117560, 132255, 152828, 167523, 176340, 191035, 211608, 223364, 229242, 264510, 279205, 305656, 335046, 343863, 352680, 382070, 446728, 458484, 502569, 529020, 558410, 573105, 670092, 687726, 725933, 764140, 837615, 916968, 1005138, 1058040, 1116820, 1146210, 1340184, 1375452, 1451866, 1528280, 1675230, 1719315, 2010276, 2177799, 2233640, 2292420, 2512845, 2750904, 2903732, 3350460, 3438630, 3629665, 4020552, 4355598, 4584840, 5025690, 5807464, 6533397, 6700920, 6877260, 7259330, 8711196, 10051380, 10888995, 13066794, 13754520, 14518660, 17422392, 20102760, 21777990, 26133588, 29037320, 32666985, 43555980, 52267176, 65333970, 87111960, 130667940, 261335880]

約数ペア:

[(1, 261335880), (2, 130667940), (3, 87111960), (4, 65333970), (5, 52267176), (6, 43555980), (8, 32666985), (9, 29037320), (10, 26133588), (12, 21777990), (13, 20102760), (15, 17422392), (18, 14518660), (19, 13754520), (20, 13066794), (24, 10888995), (26, 10051380), (30, 8711196), (36, 7259330), (38, 6877260), (39, 6700920), (40, 6533397), (45, 5807464), (52, 5025690), (57, 4584840), (60, 4355598), (65, 4020552), (72, 3629665), (76, 3438630), (78, 3350460), (90, 2903732), (95, 2750904), (104, 2512845), (114, 2292420), (117, 2233640), (120, 2177799), (130, 2010276), (152, 1719315), (156, 1675230), (171, 1528280), (180, 1451866), (190, 1375452), (195, 1340184), (228, 1146210), (234, 1116820), (247, 1058040), (260, 1005138), (285, 916968), (312, 837615), (342, 764140), (360, 725933), (380, 687726), (390, 670092), (456, 573105), (468, 558410), (494, 529020), (520, 502569), (570, 458484), (585, 446728), (684, 382070), (741, 352680), (760, 343863), (780, 335046), (855, 305656), (936, 279205), (988, 264510), (1140, 229242), (1170, 223364), (1235, 211608), (1368, 191035), (1482, 176340), (1560, 167523), (1710, 152828), (1976, 132255), (2223, 117560), (2280, 114621), (2340, 111682), (2470, 105804), (2939, 88920), (2964, 88170), (3420, 76414), (3705, 70536), (4446, 58780), (4680, 55841), (4940, 52902), (5878, 44460), (5928, 44085), (6840, 38207), (7410, 35268), (8817, 29640), (8892, 29390), (9880, 26451), (11115, 23512), (11756, 22230), (14695, 17784), (14820, 17634)]