31219920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{331}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 105966432

約数和(自身を除く): 74746512

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 131, 144, 180, 240, 262, 331, 360, 393, 524, 655, 662, 720, 786, 993, 1048, 1179, 1310, 1324, 1572, 1655, 1965, 1986, 2096, 2358, 2620, 2648, 2979, 3144, 3310, 3930, 3972, 4716, 4965, 5240, 5296, 5895, 5958, 6288, 6620, 7860, 7944, 9432, 9930, 10480, 11790, 11916, 13240, 14895, 15720, 15888, 18864, 19860, 23580, 23832, 26480, 29790, 31440, 39720, 43361, 47160, 47664, 59580, 79440, 86722, 94320, 119160, 130083, 173444, 216805, 238320, 260166, 346888, 390249, 433610, 520332, 650415, 693776, 780498, 867220, 1040664, 1300830, 1560996, 1734440, 1951245, 2081328, 2601660, 3121992, 3468880, 3902490, 5203320, 6243984, 7804980, 10406640, 15609960, 31219920]

約数ペア:

[(1, 31219920), (2, 15609960), (3, 10406640), (4, 7804980), (5, 6243984), (6, 5203320), (8, 3902490), (9, 3468880), (10, 3121992), (12, 2601660), (15, 2081328), (16, 1951245), (18, 1734440), (20, 1560996), (24, 1300830), (30, 1040664), (36, 867220), (40, 780498), (45, 693776), (48, 650415), (60, 520332), (72, 433610), (80, 390249), (90, 346888), (120, 260166), (131, 238320), (144, 216805), (180, 173444), (240, 130083), (262, 119160), (331, 94320), (360, 86722), (393, 79440), (524, 59580), (655, 47664), (662, 47160), (720, 43361), (786, 39720), (993, 31440), (1048, 29790), (1179, 26480), (1310, 23832), (1324, 23580), (1572, 19860), (1655, 18864), (1965, 15888), (1986, 15720), (2096, 14895), (2358, 13240), (2620, 11916), (2648, 11790), (2979, 10480), (3144, 9930), (3310, 9432), (3930, 7944), (3972, 7860), (4716, 6620), (4965, 6288), (5240, 5958), (5296, 5895)]