4279940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1609}}^1$

素因数の和:1644

約数の個数: 48

約数和(自身を含む): 10819200

約数和(自身を除く): 6539260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 1609, 2660, 3218, 6436, 8045, 11263, 16090, 22526, 30571, 32180, 45052, 56315, 61142, 112630, 122284, 152855, 213997, 225260, 305710, 427994, 611420, 855988, 1069985, 2139970, 4279940]

約数ペア:

[(1, 4279940), (2, 2139970), (4, 1069985), (5, 855988), (7, 611420), (10, 427994), (14, 305710), (19, 225260), (20, 213997), (28, 152855), (35, 122284), (38, 112630), (70, 61142), (76, 56315), (95, 45052), (133, 32180), (140, 30571), (190, 22526), (266, 16090), (380, 11263), (532, 8045), (665, 6436), (1330, 3218), (1609, 2660)]