8215220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1663}}^1$

素因数の和:1704

約数の個数: 48

約数和(自身を含む): 19568640

約数和(自身を除く): 11353420

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, 1663, 2470, 3326, 4940, 6652, 8315, 16630, 21619, 31597, 33260, 43238, 63194, 86476, 108095, 126388, 157985, 216190, 315970, 410761, 432380, 631940, 821522, 1643044, 2053805, 4107610, 8215220]

約数ペア:

[(1, 8215220), (2, 4107610), (4, 2053805), (5, 1643044), (10, 821522), (13, 631940), (19, 432380), (20, 410761), (26, 315970), (38, 216190), (52, 157985), (65, 126388), (76, 108095), (95, 86476), (130, 63194), (190, 43238), (247, 33260), (260, 31597), (380, 21619), (494, 16630), (988, 8315), (1235, 6652), (1663, 4940), (2470, 3326)]