79282820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:265

約数の個数: 72

約数和(自身を含む): 179222400

約数和(自身を除く): 99939580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 139, 158, 190, 278, 316, 361, 380, 395, 556, 695, 722, 790, 1390, 1444, 1501, 1580, 1805, 2641, 2780, 3002, 3610, 5282, 6004, 7220, 7505, 10564, 10981, 13205, 15010, 21962, 26410, 28519, 30020, 43924, 50179, 52820, 54905, 57038, 100358, 109810, 114076, 142595, 200716, 208639, 219620, 250895, 285190, 417278, 501790, 570380, 834556, 1003580, 1043195, 2086390, 3964141, 4172780, 7928282, 15856564, 19820705, 39641410, 79282820]

約数ペア:

[(1, 79282820), (2, 39641410), (4, 19820705), (5, 15856564), (10, 7928282), (19, 4172780), (20, 3964141), (38, 2086390), (76, 1043195), (79, 1003580), (95, 834556), (139, 570380), (158, 501790), (190, 417278), (278, 285190), (316, 250895), (361, 219620), (380, 208639), (395, 200716), (556, 142595), (695, 114076), (722, 109810), (790, 100358), (1390, 57038), (1444, 54905), (1501, 52820), (1580, 50179), (1805, 43924), (2641, 30020), (2780, 28519), (3002, 26410), (3610, 21962), (5282, 15010), (6004, 13205), (7220, 10981), (7505, 10564)]