856248100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{2153}}^1$

素因数の和:2305

約数の個数: 72

約数和(自身を含む): 1923892488

約数和(自身を除く): 1067644388

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 97, 100, 164, 194, 205, 388, 410, 485, 820, 970, 1025, 1940, 2050, 2153, 2425, 3977, 4100, 4306, 4850, 7954, 8612, 9700, 10765, 15908, 19885, 21530, 39770, 43060, 53825, 79540, 88273, 99425, 107650, 176546, 198850, 208841, 215300, 353092, 397700, 417682, 441365, 835364, 882730, 1044205, 1765460, 2088410, 2206825, 4176820, 4413650, 5221025, 8562481, 8827300, 10442050, 17124962, 20884100, 34249924, 42812405, 85624810, 171249620, 214062025, 428124050, 856248100]

約数ペア:

[(1, 856248100), (2, 428124050), (4, 214062025), (5, 171249620), (10, 85624810), (20, 42812405), (25, 34249924), (41, 20884100), (50, 17124962), (82, 10442050), (97, 8827300), (100, 8562481), (164, 5221025), (194, 4413650), (205, 4176820), (388, 2206825), (410, 2088410), (485, 1765460), (820, 1044205), (970, 882730), (1025, 835364), (1940, 441365), (2050, 417682), (2153, 397700), (2425, 353092), (3977, 215300), (4100, 208841), (4306, 198850), (4850, 176546), (7954, 107650), (8612, 99425), (9700, 88273), (10765, 79540), (15908, 53825), (19885, 43060), (21530, 39770)]