254697240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9781}}^1$

素因数の和:9833

約数の個数: 128

約数和(自身を含む): 901509120

約数和(自身を除く): 646811880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 744, 840, 868, 930, 1085, 1240, 1302, 1736, 1860, 2170, 2604, 3255, 3720, 4340, 5208, 6510, 8680, 9781, 13020, 19562, 26040, 29343, 39124, 48905, 58686, 68467, 78248, 97810, 117372, 136934, 146715, 195620, 205401, 234744, 273868, 293430, 303211, 342335, 391240, 410802, 547736, 586860, 606422, 684670, 821604, 909633, 1027005, 1173720, 1212844, 1369340, 1516055, 1643208, 1819266, 2054010, 2122477, 2425688, 2738680, 3032110, 3638532, 4108020, 4244954, 4548165, 6064220, 6367431, 7277064, 8216040, 8489908, 9096330, 10612385, 12128440, 12734862, 16979816, 18192660, 21224770, 25469724, 31837155, 36385320, 42449540, 50939448, 63674310, 84899080, 127348620, 254697240]

約数ペア:

[(1, 254697240), (2, 127348620), (3, 84899080), (4, 63674310), (5, 50939448), (6, 42449540), (7, 36385320), (8, 31837155), (10, 25469724), (12, 21224770), (14, 18192660), (15, 16979816), (20, 12734862), (21, 12128440), (24, 10612385), (28, 9096330), (30, 8489908), (31, 8216040), (35, 7277064), (40, 6367431), (42, 6064220), (56, 4548165), (60, 4244954), (62, 4108020), (70, 3638532), (84, 3032110), (93, 2738680), (105, 2425688), (120, 2122477), (124, 2054010), (140, 1819266), (155, 1643208), (168, 1516055), (186, 1369340), (210, 1212844), (217, 1173720), (248, 1027005), (280, 909633), (310, 821604), (372, 684670), (420, 606422), (434, 586860), (465, 547736), (620, 410802), (651, 391240), (744, 342335), (840, 303211), (868, 293430), (930, 273868), (1085, 234744), (1240, 205401), (1302, 195620), (1736, 146715), (1860, 136934), (2170, 117372), (2604, 97810), (3255, 78248), (3720, 68467), (4340, 58686), (5208, 48905), (6510, 39124), (8680, 29343), (9781, 26040), (13020, 19562)]