2017477780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^2\times {\mathrm{151}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 4369873536

約数和(自身を除く): 2352395756

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 151, 194, 284, 302, 355, 388, 485, 604, 710, 755, 970, 1420, 1510, 1940, 3020, 6887, 9409, 10721, 13774, 14647, 18818, 21442, 27548, 29294, 34435, 37636, 42884, 47045, 53605, 58588, 68870, 73235, 94090, 107210, 137740, 146470, 188180, 214420, 292940, 668039, 1039937, 1336078, 1420759, 2079874, 2672156, 2841518, 3340195, 4159748, 5199685, 5683036, 6680390, 7103795, 10399370, 13360780, 14207590, 20798740, 28415180, 100873889, 201747778, 403495556, 504369445, 1008738890, 2017477780]

約数ペア:

[(1, 2017477780), (2, 1008738890), (4, 504369445), (5, 403495556), (10, 201747778), (20, 100873889), (71, 28415180), (97, 20798740), (142, 14207590), (151, 13360780), (194, 10399370), (284, 7103795), (302, 6680390), (355, 5683036), (388, 5199685), (485, 4159748), (604, 3340195), (710, 2841518), (755, 2672156), (970, 2079874), (1420, 1420759), (1510, 1336078), (1940, 1039937), (3020, 668039), (6887, 292940), (9409, 214420), (10721, 188180), (13774, 146470), (14647, 137740), (18818, 107210), (21442, 94090), (27548, 73235), (29294, 68870), (34435, 58588), (37636, 53605), (42884, 47045)]