28803636

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:885

約数の個数: 72

約数和(自身を含む): 77837760

約数和(自身を除く): 49034124

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 43, 46, 69, 86, 92, 129, 138, 172, 207, 258, 276, 387, 414, 516, 774, 809, 828, 989, 1548, 1618, 1978, 2427, 2967, 3236, 3956, 4854, 5934, 7281, 8901, 9708, 11868, 14562, 17802, 18607, 29124, 34787, 35604, 37214, 55821, 69574, 74428, 104361, 111642, 139148, 167463, 208722, 223284, 313083, 334926, 417444, 626166, 669852, 800101, 1252332, 1600202, 2400303, 3200404, 4800606, 7200909, 9601212, 14401818, 28803636]

約数ペア:

[(1, 28803636), (2, 14401818), (3, 9601212), (4, 7200909), (6, 4800606), (9, 3200404), (12, 2400303), (18, 1600202), (23, 1252332), (36, 800101), (43, 669852), (46, 626166), (69, 417444), (86, 334926), (92, 313083), (129, 223284), (138, 208722), (172, 167463), (207, 139148), (258, 111642), (276, 104361), (387, 74428), (414, 69574), (516, 55821), (774, 37214), (809, 35604), (828, 34787), (989, 29124), (1548, 18607), (1618, 17802), (1978, 14562), (2427, 11868), (2967, 9708), (3236, 8901), (3956, 7281), (4854, 5934)]