71327760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{42457}}^1$

素因数の和:42480

約数の個数: 80

約数和(自身を含む): 252710016

約数和(自身を除く): 181382256

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 42457, 84914, 127371, 169828, 212285, 254742, 297199, 339656, 424570, 509484, 594398, 636855, 679312, 849140, 891597, 1018968, 1188796, 1273710, 1485995, 1698280, 1783194, 2037936, 2377592, 2547420, 2971990, 3396560, 3566388, 4457985, 4755184, 5094840, 5943980, 7132776, 8915970, 10189680, 11887960, 14265552, 17831940, 23775920, 35663880, 71327760]

約数ペア:

[(1, 71327760), (2, 35663880), (3, 23775920), (4, 17831940), (5, 14265552), (6, 11887960), (7, 10189680), (8, 8915970), (10, 7132776), (12, 5943980), (14, 5094840), (15, 4755184), (16, 4457985), (20, 3566388), (21, 3396560), (24, 2971990), (28, 2547420), (30, 2377592), (35, 2037936), (40, 1783194), (42, 1698280), (48, 1485995), (56, 1273710), (60, 1188796), (70, 1018968), (80, 891597), (84, 849140), (105, 679312), (112, 636855), (120, 594398), (140, 509484), (168, 424570), (210, 339656), (240, 297199), (280, 254742), (336, 212285), (420, 169828), (560, 127371), (840, 84914), (1680, 42457)]