78247240

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 180725760

約数和(自身を除く): 102478520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 127, 146, 211, 254, 292, 365, 422, 508, 584, 635, 730, 844, 1016, 1055, 1270, 1460, 1688, 2110, 2540, 2920, 4220, 5080, 8440, 9271, 15403, 18542, 26797, 30806, 37084, 46355, 53594, 61612, 74168, 77015, 92710, 107188, 123224, 133985, 154030, 185420, 214376, 267970, 308060, 370840, 535940, 616120, 1071880, 1956181, 3912362, 7824724, 9780905, 15649448, 19561810, 39123620, 78247240]

約数ペア:

[(1, 78247240), (2, 39123620), (4, 19561810), (5, 15649448), (8, 9780905), (10, 7824724), (20, 3912362), (40, 1956181), (73, 1071880), (127, 616120), (146, 535940), (211, 370840), (254, 308060), (292, 267970), (365, 214376), (422, 185420), (508, 154030), (584, 133985), (635, 123224), (730, 107188), (844, 92710), (1016, 77015), (1055, 74168), (1270, 61612), (1460, 53594), (1688, 46355), (2110, 37084), (2540, 30806), (2920, 26797), (4220, 18542), (5080, 15403), (8440, 9271)]