1245019860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{988111}}^1$

素因数の和:988133

約数の個数: 72

約数和(自身を含む): 4316073216

約数和(自身を除く): 3071053356

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, 988111, 1976222, 2964333, 3952444, 4940555, 5928666, 6916777, 8892999, 9881110, 11857332, 13833554, 14821665, 17785998, 19762220, 20750331, 27667108, 29643330, 34583885, 35571996, 41500662, 44464995, 59286660, 62250993, 69167770, 83001324, 88929990, 103751655, 124501986, 138335540, 177859980, 207503310, 249003972, 311254965, 415006620, 622509930, 1245019860]

約数ペア:

[(1, 1245019860), (2, 622509930), (3, 415006620), (4, 311254965), (5, 249003972), (6, 207503310), (7, 177859980), (9, 138335540), (10, 124501986), (12, 103751655), (14, 88929990), (15, 83001324), (18, 69167770), (20, 62250993), (21, 59286660), (28, 44464995), (30, 41500662), (35, 35571996), (36, 34583885), (42, 29643330), (45, 27667108), (60, 20750331), (63, 19762220), (70, 17785998), (84, 14821665), (90, 13833554), (105, 11857332), (126, 9881110), (140, 8892999), (180, 6916777), (210, 5928666), (252, 4940555), (315, 3952444), (420, 2964333), (630, 1976222), (1260, 988111)]