28499940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{22619}}^1$

素因数の和:22641

約数の個数: 72

約数和(自身を含む): 98804160

約数和(自身を除く): 70304220

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, 22619, 45238, 67857, 90476, 113095, 135714, 158333, 203571, 226190, 271428, 316666, 339285, 407142, 452380, 474999, 633332, 678570, 791665, 814284, 949998, 1017855, 1357140, 1424997, 1583330, 1899996, 2035710, 2374995, 2849994, 3166660, 4071420, 4749990, 5699988, 7124985, 9499980, 14249970, 28499940]

約数ペア:

[(1, 28499940), (2, 14249970), (3, 9499980), (4, 7124985), (5, 5699988), (6, 4749990), (7, 4071420), (9, 3166660), (10, 2849994), (12, 2374995), (14, 2035710), (15, 1899996), (18, 1583330), (20, 1424997), (21, 1357140), (28, 1017855), (30, 949998), (35, 814284), (36, 791665), (42, 678570), (45, 633332), (60, 474999), (63, 452380), (70, 407142), (84, 339285), (90, 316666), (105, 271428), (126, 226190), (140, 203571), (180, 158333), (210, 135714), (252, 113095), (315, 90476), (420, 67857), (630, 45238), (1260, 22619)]