13155220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2663}}^1$

素因数の和:2704

約数の個数: 48

約数和(自身を含む): 31328640

約数和(自身を除く): 18173420

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 2663, 4940, 5326, 10652, 13315, 26630, 34619, 50597, 53260, 69238, 101194, 138476, 173095, 202388, 252985, 346190, 505970, 657761, 692380, 1011940, 1315522, 2631044, 3288805, 6577610, 13155220]

約数ペア:

[(1, 13155220), (2, 6577610), (4, 3288805), (5, 2631044), (10, 1315522), (13, 1011940), (19, 692380), (20, 657761), (26, 505970), (38, 346190), (52, 252985), (65, 202388), (76, 173095), (95, 138476), (130, 101194), (190, 69238), (247, 53260), (260, 50597), (380, 34619), (494, 26630), (988, 13315), (1235, 10652), (2470, 5326), (2663, 4940)]