261794520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{331}}^1$

素因数の和:387

約数の個数: 192

約数和(自身を含む): 924487200

約数和(自身を除く): 662692680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 169, 180, 195, 234, 260, 312, 331, 338, 360, 390, 468, 507, 520, 585, 662, 676, 780, 845, 936, 993, 1014, 1170, 1324, 1352, 1521, 1560, 1655, 1690, 1986, 2028, 2197, 2340, 2535, 2648, 2979, 3042, 3310, 3380, 3972, 4056, 4303, 4394, 4680, 4965, 5070, 5958, 6084, 6591, 6620, 6760, 7605, 7944, 8606, 8788, 9930, 10140, 10985, 11916, 12168, 12909, 13182, 13240, 14895, 15210, 17212, 17576, 19773, 19860, 20280, 21515, 21970, 23832, 25818, 26364, 29790, 30420, 32955, 34424, 38727, 39546, 39720, 43030, 43940, 51636, 52728, 55939, 59580, 60840, 64545, 65910, 77454, 79092, 86060, 87880, 98865, 103272, 111878, 119160, 129090, 131820, 154908, 158184, 167817, 172120, 193635, 197730, 223756, 258180, 263640, 279695, 309816, 335634, 387270, 395460, 447512, 503451, 516360, 559390, 671268, 727207, 774540, 790920, 839085, 1006902, 1118780, 1342536, 1454414, 1549080, 1678170, 2013804, 2181621, 2237560, 2517255, 2908828, 3356340, 3636035, 4027608, 4363242, 5034510, 5817656, 6544863, 6712680, 7272070, 8726484, 10069020, 10908105, 13089726, 14544140, 17452968, 20138040, 21816210, 26179452, 29088280, 32724315, 43632420, 52358904, 65448630, 87264840, 130897260, 261794520]

約数ペア:

[(1, 261794520), (2, 130897260), (3, 87264840), (4, 65448630), (5, 52358904), (6, 43632420), (8, 32724315), (9, 29088280), (10, 26179452), (12, 21816210), (13, 20138040), (15, 17452968), (18, 14544140), (20, 13089726), (24, 10908105), (26, 10069020), (30, 8726484), (36, 7272070), (39, 6712680), (40, 6544863), (45, 5817656), (52, 5034510), (60, 4363242), (65, 4027608), (72, 3636035), (78, 3356340), (90, 2908828), (104, 2517255), (117, 2237560), (120, 2181621), (130, 2013804), (156, 1678170), (169, 1549080), (180, 1454414), (195, 1342536), (234, 1118780), (260, 1006902), (312, 839085), (331, 790920), (338, 774540), (360, 727207), (390, 671268), (468, 559390), (507, 516360), (520, 503451), (585, 447512), (662, 395460), (676, 387270), (780, 335634), (845, 309816), (936, 279695), (993, 263640), (1014, 258180), (1170, 223756), (1324, 197730), (1352, 193635), (1521, 172120), (1560, 167817), (1655, 158184), (1690, 154908), (1986, 131820), (2028, 129090), (2197, 119160), (2340, 111878), (2535, 103272), (2648, 98865), (2979, 87880), (3042, 86060), (3310, 79092), (3380, 77454), (3972, 65910), (4056, 64545), (4303, 60840), (4394, 59580), (4680, 55939), (4965, 52728), (5070, 51636), (5958, 43940), (6084, 43030), (6591, 39720), (6620, 39546), (6760, 38727), (7605, 34424), (7944, 32955), (8606, 30420), (8788, 29790), (9930, 26364), (10140, 25818), (10985, 23832), (11916, 21970), (12168, 21515), (12909, 20280), (13182, 19860), (13240, 19773), (14895, 17576), (15210, 17212)]