80215996

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 178246656

約数和(自身を除く): 98030660

約数列:

[1, 2, 4, 7, 14, 17, 23, 28, 34, 46, 68, 92, 119, 161, 238, 289, 322, 391, 431, 476, 578, 644, 782, 862, 1156, 1564, 1724, 2023, 2737, 3017, 4046, 5474, 6034, 6647, 7327, 8092, 9913, 10948, 12068, 13294, 14654, 19826, 26588, 29308, 39652, 46529, 51289, 69391, 93058, 102578, 124559, 138782, 168521, 186116, 205156, 249118, 277564, 337042, 498236, 674084, 871913, 1179647, 1743826, 2359294, 2864857, 3487652, 4718588, 5729714, 11459428, 20053999, 40107998, 80215996]

約数ペア:

[(1, 80215996), (2, 40107998), (4, 20053999), (7, 11459428), (14, 5729714), (17, 4718588), (23, 3487652), (28, 2864857), (34, 2359294), (46, 1743826), (68, 1179647), (92, 871913), (119, 674084), (161, 498236), (238, 337042), (289, 277564), (322, 249118), (391, 205156), (431, 186116), (476, 168521), (578, 138782), (644, 124559), (782, 102578), (862, 93058), (1156, 69391), (1564, 51289), (1724, 46529), (2023, 39652), (2737, 29308), (3017, 26588), (4046, 19826), (5474, 14654), (6034, 13294), (6647, 12068), (7327, 10948), (8092, 9913)]