31377120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:648

約数の個数: 96

約数和(自身を含む): 99792000

約数和(自身を除く): 68414880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 131, 160, 240, 262, 393, 480, 499, 524, 655, 786, 998, 1048, 1310, 1497, 1572, 1965, 1996, 2096, 2495, 2620, 2994, 3144, 3930, 3992, 4192, 4990, 5240, 5988, 6288, 7485, 7860, 7984, 9980, 10480, 11976, 12576, 14970, 15720, 15968, 19960, 20960, 23952, 29940, 31440, 39920, 47904, 59880, 62880, 65369, 79840, 119760, 130738, 196107, 239520, 261476, 326845, 392214, 522952, 653690, 784428, 980535, 1045904, 1307380, 1568856, 1961070, 2091808, 2614760, 3137712, 3922140, 5229520, 6275424, 7844280, 10459040, 15688560, 31377120]

約数ペア:

[(1, 31377120), (2, 15688560), (3, 10459040), (4, 7844280), (5, 6275424), (6, 5229520), (8, 3922140), (10, 3137712), (12, 2614760), (15, 2091808), (16, 1961070), (20, 1568856), (24, 1307380), (30, 1045904), (32, 980535), (40, 784428), (48, 653690), (60, 522952), (80, 392214), (96, 326845), (120, 261476), (131, 239520), (160, 196107), (240, 130738), (262, 119760), (393, 79840), (480, 65369), (499, 62880), (524, 59880), (655, 47904), (786, 39920), (998, 31440), (1048, 29940), (1310, 23952), (1497, 20960), (1572, 19960), (1965, 15968), (1996, 15720), (2096, 14970), (2495, 12576), (2620, 11976), (2994, 10480), (3144, 9980), (3930, 7984), (3992, 7860), (4192, 7485), (4990, 6288), (5240, 5988)]