20413080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1$

素因数の和:522

約数の個数: 128

約数和(自身を含む): 69854400

約数和(自身を除く): 49441320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 41, 45, 54, 60, 72, 82, 90, 108, 120, 123, 135, 164, 180, 205, 216, 246, 270, 328, 360, 369, 410, 461, 492, 540, 615, 738, 820, 922, 984, 1080, 1107, 1230, 1383, 1476, 1640, 1844, 1845, 2214, 2305, 2460, 2766, 2952, 3688, 3690, 4149, 4428, 4610, 4920, 5532, 5535, 6915, 7380, 8298, 8856, 9220, 11064, 11070, 12447, 13830, 14760, 16596, 18440, 18901, 20745, 22140, 24894, 27660, 33192, 37802, 41490, 44280, 49788, 55320, 56703, 62235, 75604, 82980, 94505, 99576, 113406, 124470, 151208, 165960, 170109, 189010, 226812, 248940, 283515, 340218, 378020, 453624, 497880, 510327, 567030, 680436, 756040, 850545, 1020654, 1134060, 1360872, 1701090, 2041308, 2268120, 2551635, 3402180, 4082616, 5103270, 6804360, 10206540, 20413080]

約数ペア:

[(1, 20413080), (2, 10206540), (3, 6804360), (4, 5103270), (5, 4082616), (6, 3402180), (8, 2551635), (9, 2268120), (10, 2041308), (12, 1701090), (15, 1360872), (18, 1134060), (20, 1020654), (24, 850545), (27, 756040), (30, 680436), (36, 567030), (40, 510327), (41, 497880), (45, 453624), (54, 378020), (60, 340218), (72, 283515), (82, 248940), (90, 226812), (108, 189010), (120, 170109), (123, 165960), (135, 151208), (164, 124470), (180, 113406), (205, 99576), (216, 94505), (246, 82980), (270, 75604), (328, 62235), (360, 56703), (369, 55320), (410, 49788), (461, 44280), (492, 41490), (540, 37802), (615, 33192), (738, 27660), (820, 24894), (922, 22140), (984, 20745), (1080, 18901), (1107, 18440), (1230, 16596), (1383, 14760), (1476, 13830), (1640, 12447), (1844, 11070), (1845, 11064), (2214, 9220), (2305, 8856), (2460, 8298), (2766, 7380), (2952, 6915), (3688, 5535), (3690, 5532), (4149, 4920), (4428, 4610)]