18964680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 65940480

約数和(自身を除く): 46975800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 107, 120, 140, 168, 210, 211, 214, 280, 321, 420, 422, 428, 535, 633, 642, 749, 840, 844, 856, 1055, 1070, 1266, 1284, 1477, 1498, 1605, 1688, 2110, 2140, 2247, 2532, 2568, 2954, 2996, 3165, 3210, 3745, 4220, 4280, 4431, 4494, 5064, 5908, 5992, 6330, 6420, 7385, 7490, 8440, 8862, 8988, 11235, 11816, 12660, 12840, 14770, 14980, 17724, 17976, 22155, 22470, 22577, 25320, 29540, 29960, 35448, 44310, 44940, 45154, 59080, 67731, 88620, 89880, 90308, 112885, 135462, 158039, 177240, 180616, 225770, 270924, 316078, 338655, 451540, 474117, 541848, 632156, 677310, 790195, 903080, 948234, 1264312, 1354620, 1580390, 1896468, 2370585, 2709240, 3160780, 3792936, 4741170, 6321560, 9482340, 18964680]

約数ペア:

[(1, 18964680), (2, 9482340), (3, 6321560), (4, 4741170), (5, 3792936), (6, 3160780), (7, 2709240), (8, 2370585), (10, 1896468), (12, 1580390), (14, 1354620), (15, 1264312), (20, 948234), (21, 903080), (24, 790195), (28, 677310), (30, 632156), (35, 541848), (40, 474117), (42, 451540), (56, 338655), (60, 316078), (70, 270924), (84, 225770), (105, 180616), (107, 177240), (120, 158039), (140, 135462), (168, 112885), (210, 90308), (211, 89880), (214, 88620), (280, 67731), (321, 59080), (420, 45154), (422, 44940), (428, 44310), (535, 35448), (633, 29960), (642, 29540), (749, 25320), (840, 22577), (844, 22470), (856, 22155), (1055, 17976), (1070, 17724), (1266, 14980), (1284, 14770), (1477, 12840), (1498, 12660), (1605, 11816), (1688, 11235), (2110, 8988), (2140, 8862), (2247, 8440), (2532, 7490), (2568, 7385), (2954, 6420), (2996, 6330), (3165, 5992), (3210, 5908), (3745, 5064), (4220, 4494), (4280, 4431)]