494057980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{313}}^1\times {\mathrm{467}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 1129473072

約数和(自身を除く): 635415092

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 313, 338, 467, 626, 676, 845, 934, 1252, 1565, 1690, 1868, 2335, 3130, 3380, 4069, 4670, 6071, 6260, 8138, 9340, 12142, 16276, 20345, 24284, 30355, 40690, 52897, 60710, 78923, 81380, 105794, 121420, 146171, 157846, 211588, 264485, 292342, 315692, 394615, 528970, 584684, 730855, 789230, 1057940, 1461710, 1578460, 1900223, 2923420, 3800446, 7600892, 9501115, 19002230, 24702899, 38004460, 49405798, 98811596, 123514495, 247028990, 494057980]

約数ペア:

[(1, 494057980), (2, 247028990), (4, 123514495), (5, 98811596), (10, 49405798), (13, 38004460), (20, 24702899), (26, 19002230), (52, 9501115), (65, 7600892), (130, 3800446), (169, 2923420), (260, 1900223), (313, 1578460), (338, 1461710), (467, 1057940), (626, 789230), (676, 730855), (845, 584684), (934, 528970), (1252, 394615), (1565, 315692), (1690, 292342), (1868, 264485), (2335, 211588), (3130, 157846), (3380, 146171), (4069, 121420), (4670, 105794), (6071, 81380), (6260, 78923), (8138, 60710), (9340, 52897), (12142, 40690), (16276, 30355), (20345, 24284)]