69809940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{997}}^1$

素因数の和:1401

約数の個数: 72

約数和(自身を含む): 212514120

約数和(自身を除く): 142704180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 997, 1167, 1556, 1945, 1994, 2334, 2991, 3501, 3890, 3988, 4668, 4985, 5835, 5982, 7002, 7780, 8973, 9970, 11670, 11964, 14004, 14955, 17505, 17946, 19940, 23340, 29910, 35010, 35892, 44865, 59820, 70020, 89730, 179460, 387833, 775666, 1163499, 1551332, 1939165, 2326998, 3490497, 3878330, 4653996, 5817495, 6980994, 7756660, 11634990, 13961988, 17452485, 23269980, 34904970, 69809940]

約数ペア:

[(1, 69809940), (2, 34904970), (3, 23269980), (4, 17452485), (5, 13961988), (6, 11634990), (9, 7756660), (10, 6980994), (12, 5817495), (15, 4653996), (18, 3878330), (20, 3490497), (30, 2326998), (36, 1939165), (45, 1551332), (60, 1163499), (90, 775666), (180, 387833), (389, 179460), (778, 89730), (997, 70020), (1167, 59820), (1556, 44865), (1945, 35892), (1994, 35010), (2334, 29910), (2991, 23340), (3501, 19940), (3890, 17946), (3988, 17505), (4668, 14955), (4985, 14004), (5835, 11964), (5982, 11670), (7002, 9970), (7780, 8973)]