80459820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{63857}}^1$

素因数の和:63879

約数の個数: 72

約数和(自身を含む): 278931744

約数和(自身を除く): 198471924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 63857, 127714, 191571, 255428, 319285, 383142, 446999, 574713, 638570, 766284, 893998, 957855, 1149426, 1277140, 1340997, 1787996, 1915710, 2234995, 2298852, 2681994, 2873565, 3831420, 4022991, 4469990, 5363988, 5747130, 6704985, 8045982, 8939980, 11494260, 13409970, 16091964, 20114955, 26819940, 40229910, 80459820]

約数ペア:

[(1, 80459820), (2, 40229910), (3, 26819940), (4, 20114955), (5, 16091964), (6, 13409970), (7, 11494260), (9, 8939980), (10, 8045982), (12, 6704985), (14, 5747130), (15, 5363988), (18, 4469990), (20, 4022991), (21, 3831420), (28, 2873565), (30, 2681994), (35, 2298852), (36, 2234995), (42, 1915710), (45, 1787996), (60, 1340997), (63, 1277140), (70, 1149426), (84, 957855), (90, 893998), (105, 766284), (126, 638570), (140, 574713), (180, 446999), (210, 383142), (252, 319285), (315, 255428), (420, 191571), (630, 127714), (1260, 63857)]