228205880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:541

約数の個数: 128

約数和(自身を含む): 617103360

約数和(自身を除く): 388897480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 61, 62, 70, 122, 124, 140, 155, 217, 244, 248, 280, 305, 310, 427, 431, 434, 488, 610, 620, 854, 862, 868, 1085, 1220, 1240, 1708, 1724, 1736, 1891, 2135, 2155, 2170, 2440, 3017, 3416, 3448, 3782, 4270, 4310, 4340, 6034, 7564, 8540, 8620, 8680, 9455, 12068, 13237, 13361, 15085, 15128, 17080, 17240, 18910, 24136, 26291, 26474, 26722, 30170, 37820, 52582, 52948, 53444, 60340, 66185, 66805, 75640, 93527, 105164, 105896, 106888, 120680, 131455, 132370, 133610, 184037, 187054, 210328, 262910, 264740, 267220, 368074, 374108, 467635, 525820, 529480, 534440, 736148, 748216, 815021, 920185, 935270, 1051640, 1472296, 1630042, 1840370, 1870540, 3260084, 3680740, 3741080, 4075105, 5705147, 6520168, 7361480, 8150210, 11410294, 16300420, 22820588, 28525735, 32600840, 45641176, 57051470, 114102940, 228205880]

約数ペア:

[(1, 228205880), (2, 114102940), (4, 57051470), (5, 45641176), (7, 32600840), (8, 28525735), (10, 22820588), (14, 16300420), (20, 11410294), (28, 8150210), (31, 7361480), (35, 6520168), (40, 5705147), (56, 4075105), (61, 3741080), (62, 3680740), (70, 3260084), (122, 1870540), (124, 1840370), (140, 1630042), (155, 1472296), (217, 1051640), (244, 935270), (248, 920185), (280, 815021), (305, 748216), (310, 736148), (427, 534440), (431, 529480), (434, 525820), (488, 467635), (610, 374108), (620, 368074), (854, 267220), (862, 264740), (868, 262910), (1085, 210328), (1220, 187054), (1240, 184037), (1708, 133610), (1724, 132370), (1736, 131455), (1891, 120680), (2135, 106888), (2155, 105896), (2170, 105164), (2440, 93527), (3017, 75640), (3416, 66805), (3448, 66185), (3782, 60340), (4270, 53444), (4310, 52948), (4340, 52582), (6034, 37820), (7564, 30170), (8540, 26722), (8620, 26474), (8680, 26291), (9455, 24136), (12068, 18910), (13237, 17240), (13361, 17080), (15085, 15128)]