261221220

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:451

約数の個数: 192

約数和(自身を含む): 885104640

約数和(自身を除く): 623883420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 127, 130, 135, 156, 180, 195, 234, 254, 260, 270, 293, 351, 381, 390, 468, 508, 540, 585, 586, 635, 702, 762, 780, 879, 1143, 1170, 1172, 1270, 1404, 1465, 1524, 1651, 1755, 1758, 1905, 2286, 2340, 2540, 2637, 2930, 3302, 3429, 3510, 3516, 3809, 3810, 4395, 4572, 4953, 5274, 5715, 5860, 6604, 6858, 7020, 7618, 7620, 7911, 8255, 8790, 9906, 10548, 11427, 11430, 13185, 13716, 14859, 15236, 15822, 16510, 17145, 17580, 19045, 19812, 22854, 22860, 24765, 26370, 29718, 31644, 33020, 34281, 34290, 37211, 38090, 39555, 44577, 45708, 49530, 52740, 57135, 59436, 68562, 68580, 74295, 74422, 76180, 79110, 89154, 99060, 102843, 111633, 114270, 137124, 148590, 148844, 158220, 171405, 178308, 186055, 205686, 222885, 223266, 228540, 297180, 334899, 342810, 372110, 411372, 445770, 446532, 483743, 514215, 558165, 669798, 685620, 744220, 891540, 967486, 1004697, 1028430, 1116330, 1339596, 1451229, 1674495, 1934972, 2009394, 2056860, 2232660, 2418715, 2902458, 3348990, 4018788, 4353687, 4837430, 5023485, 5804916, 6697980, 7256145, 8707374, 9674860, 10046970, 13061061, 14512290, 17414748, 20093940, 21768435, 26122122, 29024580, 43536870, 52244244, 65305305, 87073740, 130610610, 261221220]

約数ペア:

[(1, 261221220), (2, 130610610), (3, 87073740), (4, 65305305), (5, 52244244), (6, 43536870), (9, 29024580), (10, 26122122), (12, 21768435), (13, 20093940), (15, 17414748), (18, 14512290), (20, 13061061), (26, 10046970), (27, 9674860), (30, 8707374), (36, 7256145), (39, 6697980), (45, 5804916), (52, 5023485), (54, 4837430), (60, 4353687), (65, 4018788), (78, 3348990), (90, 2902458), (108, 2418715), (117, 2232660), (127, 2056860), (130, 2009394), (135, 1934972), (156, 1674495), (180, 1451229), (195, 1339596), (234, 1116330), (254, 1028430), (260, 1004697), (270, 967486), (293, 891540), (351, 744220), (381, 685620), (390, 669798), (468, 558165), (508, 514215), (540, 483743), (585, 446532), (586, 445770), (635, 411372), (702, 372110), (762, 342810), (780, 334899), (879, 297180), (1143, 228540), (1170, 223266), (1172, 222885), (1270, 205686), (1404, 186055), (1465, 178308), (1524, 171405), (1651, 158220), (1755, 148844), (1758, 148590), (1905, 137124), (2286, 114270), (2340, 111633), (2540, 102843), (2637, 99060), (2930, 89154), (3302, 79110), (3429, 76180), (3510, 74422), (3516, 74295), (3809, 68580), (3810, 68562), (4395, 59436), (4572, 57135), (4953, 52740), (5274, 49530), (5715, 45708), (5860, 44577), (6604, 39555), (6858, 38090), (7020, 37211), (7618, 34290), (7620, 34281), (7911, 33020), (8255, 31644), (8790, 29718), (9906, 26370), (10548, 24765), (11427, 22860), (11430, 22854), (13185, 19812), (13716, 19045), (14859, 17580), (15236, 17145), (15822, 16510)]