217606480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 160

約数和(自身を含む): 632959488

約数和(自身を除く): 415353008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 71, 80, 91, 104, 112, 130, 140, 142, 182, 208, 260, 280, 284, 355, 364, 421, 455, 497, 520, 560, 568, 710, 728, 842, 910, 923, 994, 1040, 1136, 1420, 1456, 1684, 1820, 1846, 1988, 2105, 2485, 2840, 2947, 3368, 3640, 3692, 3976, 4210, 4615, 4970, 5473, 5680, 5894, 6461, 6736, 7280, 7384, 7952, 8420, 9230, 9940, 10946, 11788, 12922, 14735, 14768, 16840, 18460, 19880, 21892, 23576, 25844, 27365, 29470, 29891, 32305, 33680, 36920, 38311, 39760, 43784, 47152, 51688, 54730, 58940, 59782, 64610, 73840, 76622, 87568, 103376, 109460, 117880, 119564, 129220, 149455, 153244, 191555, 209237, 218920, 235760, 239128, 258440, 298910, 306488, 383110, 388583, 418474, 437840, 478256, 516880, 597820, 612976, 766220, 777166, 836948, 1046185, 1195640, 1532440, 1554332, 1673896, 1942915, 2092370, 2391280, 2720081, 3064880, 3108664, 3347792, 3885830, 4184740, 5440162, 6217328, 7771660, 8369480, 10880324, 13600405, 15543320, 16738960, 21760648, 27200810, 31086640, 43521296, 54401620, 108803240, 217606480]

約数ペア:

[(1, 217606480), (2, 108803240), (4, 54401620), (5, 43521296), (7, 31086640), (8, 27200810), (10, 21760648), (13, 16738960), (14, 15543320), (16, 13600405), (20, 10880324), (26, 8369480), (28, 7771660), (35, 6217328), (40, 5440162), (52, 4184740), (56, 3885830), (65, 3347792), (70, 3108664), (71, 3064880), (80, 2720081), (91, 2391280), (104, 2092370), (112, 1942915), (130, 1673896), (140, 1554332), (142, 1532440), (182, 1195640), (208, 1046185), (260, 836948), (280, 777166), (284, 766220), (355, 612976), (364, 597820), (421, 516880), (455, 478256), (497, 437840), (520, 418474), (560, 388583), (568, 383110), (710, 306488), (728, 298910), (842, 258440), (910, 239128), (923, 235760), (994, 218920), (1040, 209237), (1136, 191555), (1420, 153244), (1456, 149455), (1684, 129220), (1820, 119564), (1846, 117880), (1988, 109460), (2105, 103376), (2485, 87568), (2840, 76622), (2947, 73840), (3368, 64610), (3640, 59782), (3692, 58940), (3976, 54730), (4210, 51688), (4615, 47152), (4970, 43784), (5473, 39760), (5680, 38311), (5894, 36920), (6461, 33680), (6736, 32305), (7280, 29891), (7384, 29470), (7952, 27365), (8420, 25844), (9230, 23576), (9940, 21892), (10946, 19880), (11788, 18460), (12922, 16840), (14735, 14768)]