31855440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{401}}^1$

素因数の和:748

約数の個数: 80

約数和(自身を含む): 99297216

約数和(自身を除く): 67441776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 331, 401, 662, 802, 993, 1203, 1324, 1604, 1655, 1986, 2005, 2406, 2648, 3208, 3310, 3972, 4010, 4812, 4965, 5296, 6015, 6416, 6620, 7944, 8020, 9624, 9930, 12030, 13240, 15888, 16040, 19248, 19860, 24060, 26480, 32080, 39720, 48120, 79440, 96240, 132731, 265462, 398193, 530924, 663655, 796386, 1061848, 1327310, 1592772, 1990965, 2123696, 2654620, 3185544, 3981930, 5309240, 6371088, 7963860, 10618480, 15927720, 31855440]

約数ペア:

[(1, 31855440), (2, 15927720), (3, 10618480), (4, 7963860), (5, 6371088), (6, 5309240), (8, 3981930), (10, 3185544), (12, 2654620), (15, 2123696), (16, 1990965), (20, 1592772), (24, 1327310), (30, 1061848), (40, 796386), (48, 663655), (60, 530924), (80, 398193), (120, 265462), (240, 132731), (331, 96240), (401, 79440), (662, 48120), (802, 39720), (993, 32080), (1203, 26480), (1324, 24060), (1604, 19860), (1655, 19248), (1986, 16040), (2005, 15888), (2406, 13240), (2648, 12030), (3208, 9930), (3310, 9624), (3972, 8020), (4010, 7944), (4812, 6620), (4965, 6416), (5296, 6015)]