20208720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:569

約数の個数: 160

約数和(自身を含む): 74852352

約数和(自身を除く): 54643632

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 523, 552, 560, 644, 690, 805, 840, 920, 966, 1046, 1104, 1288, 1380, 1569, 1610, 1680, 1840, 1932, 2092, 2415, 2576, 2615, 2760, 3138, 3220, 3661, 3864, 4184, 4830, 5230, 5520, 6276, 6440, 7322, 7728, 7845, 8368, 9660, 10460, 10983, 12029, 12552, 12880, 14644, 15690, 18305, 19320, 20920, 21966, 24058, 25104, 29288, 31380, 36087, 36610, 38640, 41840, 43932, 48116, 54915, 58576, 60145, 62760, 72174, 73220, 84203, 87864, 96232, 109830, 120290, 125520, 144348, 146440, 168406, 175728, 180435, 192464, 219660, 240580, 252609, 288696, 292880, 336812, 360870, 421015, 439320, 481160, 505218, 577392, 673624, 721740, 842030, 878640, 962320, 1010436, 1263045, 1347248, 1443480, 1684060, 2020872, 2526090, 2886960, 3368120, 4041744, 5052180, 6736240, 10104360, 20208720]

約数ペア:

[(1, 20208720), (2, 10104360), (3, 6736240), (4, 5052180), (5, 4041744), (6, 3368120), (7, 2886960), (8, 2526090), (10, 2020872), (12, 1684060), (14, 1443480), (15, 1347248), (16, 1263045), (20, 1010436), (21, 962320), (23, 878640), (24, 842030), (28, 721740), (30, 673624), (35, 577392), (40, 505218), (42, 481160), (46, 439320), (48, 421015), (56, 360870), (60, 336812), (69, 292880), (70, 288696), (80, 252609), (84, 240580), (92, 219660), (105, 192464), (112, 180435), (115, 175728), (120, 168406), (138, 146440), (140, 144348), (161, 125520), (168, 120290), (184, 109830), (210, 96232), (230, 87864), (240, 84203), (276, 73220), (280, 72174), (322, 62760), (336, 60145), (345, 58576), (368, 54915), (420, 48116), (460, 43932), (483, 41840), (523, 38640), (552, 36610), (560, 36087), (644, 31380), (690, 29288), (805, 25104), (840, 24058), (920, 21966), (966, 20920), (1046, 19320), (1104, 18305), (1288, 15690), (1380, 14644), (1569, 12880), (1610, 12552), (1680, 12029), (1840, 10983), (1932, 10460), (2092, 9660), (2415, 8368), (2576, 7845), (2615, 7728), (2760, 7322), (3138, 6440), (3220, 6276), (3661, 5520), (3864, 5230), (4184, 4830)]