28891356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 76581120

約数和(自身を除く): 47689764

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 59, 73, 78, 86, 118, 129, 146, 156, 172, 177, 219, 236, 258, 292, 354, 438, 516, 559, 708, 767, 876, 949, 1118, 1534, 1677, 1898, 2236, 2301, 2537, 2847, 3068, 3139, 3354, 3796, 4307, 4602, 5074, 5694, 6278, 6708, 7611, 8614, 9204, 9417, 10148, 11388, 12556, 12921, 15222, 17228, 18834, 25842, 30444, 32981, 37668, 40807, 51684, 55991, 65962, 81614, 98943, 111982, 122421, 131924, 163228, 167973, 185201, 197886, 223964, 244842, 335946, 370402, 395772, 489684, 555603, 671892, 740804, 1111206, 2222412, 2407613, 4815226, 7222839, 9630452, 14445678, 28891356]

約数ペア:

[(1, 28891356), (2, 14445678), (3, 9630452), (4, 7222839), (6, 4815226), (12, 2407613), (13, 2222412), (26, 1111206), (39, 740804), (43, 671892), (52, 555603), (59, 489684), (73, 395772), (78, 370402), (86, 335946), (118, 244842), (129, 223964), (146, 197886), (156, 185201), (172, 167973), (177, 163228), (219, 131924), (236, 122421), (258, 111982), (292, 98943), (354, 81614), (438, 65962), (516, 55991), (559, 51684), (708, 40807), (767, 37668), (876, 32981), (949, 30444), (1118, 25842), (1534, 18834), (1677, 17228), (1898, 15222), (2236, 12921), (2301, 12556), (2537, 11388), (2847, 10148), (3068, 9417), (3139, 9204), (3354, 8614), (3796, 7611), (4307, 6708), (4602, 6278), (5074, 5694)]