18628920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:434

約数の個数: 128

約数和(自身を含む): 63590400

約数和(自身を除く): 44961480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 367, 376, 423, 470, 540, 564, 705, 734, 846, 940, 1080, 1101, 1128, 1269, 1410, 1468, 1692, 1835, 1880, 2115, 2202, 2538, 2820, 2936, 3303, 3384, 3670, 4230, 4404, 5076, 5505, 5640, 6345, 6606, 7340, 8460, 8808, 9909, 10152, 11010, 12690, 13212, 14680, 16515, 16920, 17249, 19818, 22020, 25380, 26424, 33030, 34498, 39636, 44040, 49545, 50760, 51747, 66060, 68996, 79272, 86245, 99090, 103494, 132120, 137992, 155241, 172490, 198180, 206988, 258735, 310482, 344980, 396360, 413976, 465723, 517470, 620964, 689960, 776205, 931446, 1034940, 1241928, 1552410, 1862892, 2069880, 2328615, 3104820, 3725784, 4657230, 6209640, 9314460, 18628920]

約数ペア:

[(1, 18628920), (2, 9314460), (3, 6209640), (4, 4657230), (5, 3725784), (6, 3104820), (8, 2328615), (9, 2069880), (10, 1862892), (12, 1552410), (15, 1241928), (18, 1034940), (20, 931446), (24, 776205), (27, 689960), (30, 620964), (36, 517470), (40, 465723), (45, 413976), (47, 396360), (54, 344980), (60, 310482), (72, 258735), (90, 206988), (94, 198180), (108, 172490), (120, 155241), (135, 137992), (141, 132120), (180, 103494), (188, 99090), (216, 86245), (235, 79272), (270, 68996), (282, 66060), (360, 51747), (367, 50760), (376, 49545), (423, 44040), (470, 39636), (540, 34498), (564, 33030), (705, 26424), (734, 25380), (846, 22020), (940, 19818), (1080, 17249), (1101, 16920), (1128, 16515), (1269, 14680), (1410, 13212), (1468, 12690), (1692, 11010), (1835, 10152), (1880, 9909), (2115, 8808), (2202, 8460), (2538, 7340), (2820, 6606), (2936, 6345), (3303, 5640), (3384, 5505), (3670, 5076), (4230, 4404)]