7850440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 19676160

約数和(自身を除く): 11825720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 487, 520, 620, 806, 974, 1240, 1612, 1948, 2015, 2435, 3224, 3896, 4030, 4870, 6331, 8060, 9740, 12662, 15097, 16120, 19480, 25324, 30194, 31655, 50648, 60388, 63310, 75485, 120776, 126620, 150970, 196261, 253240, 301940, 392522, 603880, 785044, 981305, 1570088, 1962610, 3925220, 7850440]

約数ペア:

[(1, 7850440), (2, 3925220), (4, 1962610), (5, 1570088), (8, 981305), (10, 785044), (13, 603880), (20, 392522), (26, 301940), (31, 253240), (40, 196261), (52, 150970), (62, 126620), (65, 120776), (104, 75485), (124, 63310), (130, 60388), (155, 50648), (248, 31655), (260, 30194), (310, 25324), (403, 19480), (487, 16120), (520, 15097), (620, 12662), (806, 9740), (974, 8060), (1240, 6331), (1612, 4870), (1948, 4030), (2015, 3896), (2435, 3224)]