31157040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1138

約数の個数: 80

約数和(自身を含む): 97422336

約数和(自身を除く): 66265296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 131, 240, 262, 393, 524, 655, 786, 991, 1048, 1310, 1572, 1965, 1982, 2096, 2620, 2973, 3144, 3930, 3964, 4955, 5240, 5946, 6288, 7860, 7928, 9910, 10480, 11892, 14865, 15720, 15856, 19820, 23784, 29730, 31440, 39640, 47568, 59460, 79280, 118920, 129821, 237840, 259642, 389463, 519284, 649105, 778926, 1038568, 1298210, 1557852, 1947315, 2077136, 2596420, 3115704, 3894630, 5192840, 6231408, 7789260, 10385680, 15578520, 31157040]

約数ペア:

[(1, 31157040), (2, 15578520), (3, 10385680), (4, 7789260), (5, 6231408), (6, 5192840), (8, 3894630), (10, 3115704), (12, 2596420), (15, 2077136), (16, 1947315), (20, 1557852), (24, 1298210), (30, 1038568), (40, 778926), (48, 649105), (60, 519284), (80, 389463), (120, 259642), (131, 237840), (240, 129821), (262, 118920), (393, 79280), (524, 59460), (655, 47568), (786, 39640), (991, 31440), (1048, 29730), (1310, 23784), (1572, 19820), (1965, 15856), (1982, 15720), (2096, 14865), (2620, 11892), (2973, 10480), (3144, 9910), (3930, 7928), (3964, 7860), (4955, 6288), (5240, 5946)]