31867880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 84602880

約数和(自身を除く): 52735000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 47, 55, 67, 88, 92, 94, 110, 115, 134, 184, 188, 220, 230, 235, 253, 268, 335, 376, 440, 460, 470, 506, 517, 536, 670, 737, 920, 940, 1012, 1034, 1081, 1265, 1340, 1474, 1541, 1880, 2024, 2068, 2162, 2530, 2585, 2680, 2948, 3082, 3149, 3685, 4136, 4324, 5060, 5170, 5405, 5896, 6164, 6298, 7370, 7705, 8648, 10120, 10340, 10810, 11891, 12328, 12596, 14740, 15410, 15745, 16951, 20680, 21620, 23782, 25192, 29480, 30820, 31490, 33902, 34639, 43240, 47564, 59455, 61640, 62980, 67804, 69278, 72427, 84755, 95128, 118910, 125960, 135608, 138556, 144854, 169510, 173195, 237820, 277112, 289708, 339020, 346390, 362135, 475640, 579416, 678040, 692780, 724270, 796697, 1385560, 1448540, 1593394, 2897080, 3186788, 3983485, 6373576, 7966970, 15933940, 31867880]

約数ペア:

[(1, 31867880), (2, 15933940), (4, 7966970), (5, 6373576), (8, 3983485), (10, 3186788), (11, 2897080), (20, 1593394), (22, 1448540), (23, 1385560), (40, 796697), (44, 724270), (46, 692780), (47, 678040), (55, 579416), (67, 475640), (88, 362135), (92, 346390), (94, 339020), (110, 289708), (115, 277112), (134, 237820), (184, 173195), (188, 169510), (220, 144854), (230, 138556), (235, 135608), (253, 125960), (268, 118910), (335, 95128), (376, 84755), (440, 72427), (460, 69278), (470, 67804), (506, 62980), (517, 61640), (536, 59455), (670, 47564), (737, 43240), (920, 34639), (940, 33902), (1012, 31490), (1034, 30820), (1081, 29480), (1265, 25192), (1340, 23782), (1474, 21620), (1541, 20680), (1880, 16951), (2024, 15745), (2068, 15410), (2162, 14740), (2530, 12596), (2585, 12328), (2680, 11891), (2948, 10810), (3082, 10340), (3149, 10120), (3685, 8648), (4136, 7705), (4324, 7370), (5060, 6298), (5170, 6164), (5405, 5896)]