20607860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^3\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 96

約数和(自身を含む): 54378240

約数和(自身を除く): 33770380

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 67, 70, 91, 130, 134, 140, 169, 182, 260, 268, 335, 338, 364, 455, 469, 670, 676, 845, 871, 910, 938, 1183, 1340, 1690, 1742, 1820, 1876, 2197, 2345, 2366, 3380, 3484, 4355, 4394, 4690, 4732, 5915, 6097, 8710, 8788, 9380, 10985, 11323, 11830, 12194, 15379, 17420, 21970, 22646, 23660, 24388, 30485, 30758, 43940, 45292, 56615, 60970, 61516, 76895, 79261, 113230, 121940, 147199, 153790, 158522, 226460, 294398, 307580, 317044, 396305, 588796, 735995, 792610, 1030393, 1471990, 1585220, 2060786, 2943980, 4121572, 5151965, 10303930, 20607860]

約数ペア:

[(1, 20607860), (2, 10303930), (4, 5151965), (5, 4121572), (7, 2943980), (10, 2060786), (13, 1585220), (14, 1471990), (20, 1030393), (26, 792610), (28, 735995), (35, 588796), (52, 396305), (65, 317044), (67, 307580), (70, 294398), (91, 226460), (130, 158522), (134, 153790), (140, 147199), (169, 121940), (182, 113230), (260, 79261), (268, 76895), (335, 61516), (338, 60970), (364, 56615), (455, 45292), (469, 43940), (670, 30758), (676, 30485), (845, 24388), (871, 23660), (910, 22646), (938, 21970), (1183, 17420), (1340, 15379), (1690, 12194), (1742, 11830), (1820, 11323), (1876, 10985), (2197, 9380), (2345, 8788), (2366, 8710), (3380, 6097), (3484, 5915), (4355, 4732), (4394, 4690)]