77760620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7823}}^1$

素因数の和:7910

約数の個数: 48

約数和(自身を含む): 189278208

約数和(自身を除く): 111517588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 7823, 9940, 15646, 31292, 39115, 54761, 78230, 109522, 156460, 219044, 273805, 547610, 555433, 1095220, 1110866, 2221732, 2777165, 3888031, 5554330, 7776062, 11108660, 15552124, 19440155, 38880310, 77760620]

約数ペア:

[(1, 77760620), (2, 38880310), (4, 19440155), (5, 15552124), (7, 11108660), (10, 7776062), (14, 5554330), (20, 3888031), (28, 2777165), (35, 2221732), (70, 1110866), (71, 1095220), (140, 555433), (142, 547610), (284, 273805), (355, 219044), (497, 156460), (710, 109522), (994, 78230), (1420, 54761), (1988, 39115), (2485, 31292), (4970, 15646), (7823, 9940)]