78869740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{293}}^1\times {\mathrm{313}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 170599968

約数和(自身を除く): 91730228

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 293, 313, 430, 586, 626, 860, 1172, 1252, 1465, 1565, 2930, 3130, 5860, 6260, 12599, 13459, 25198, 26918, 50396, 53836, 62995, 67295, 91709, 125990, 134590, 183418, 251980, 269180, 366836, 458545, 917090, 1834180, 3943487, 7886974, 15773948, 19717435, 39434870, 78869740]

約数ペア:

[(1, 78869740), (2, 39434870), (4, 19717435), (5, 15773948), (10, 7886974), (20, 3943487), (43, 1834180), (86, 917090), (172, 458545), (215, 366836), (293, 269180), (313, 251980), (430, 183418), (586, 134590), (626, 125990), (860, 91709), (1172, 67295), (1252, 62995), (1465, 53836), (1565, 50396), (2930, 26918), (3130, 25198), (5860, 13459), (6260, 12599)]