20216928225

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{2137}}^1$

素因数の和:2507

約数の個数: 96

約数和(自身を含む): 37293835264

約数和(自身を除く): 17076907039

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 155, 195, 313, 325, 403, 465, 775, 939, 975, 1209, 1565, 2015, 2137, 2325, 4069, 4695, 6045, 6411, 7825, 9703, 10075, 10685, 12207, 20345, 23475, 27781, 29109, 30225, 32055, 48515, 53425, 61035, 66247, 83343, 101725, 126139, 138905, 145545, 160275, 198741, 242575, 305175, 331235, 378417, 416715, 630695, 668881, 694525, 727725, 861211, 993705, 1656175, 1892085, 2006643, 2083575, 2583633, 3153475, 3344405, 4306055, 4968525, 8695453, 9460425, 10033215, 12918165, 16722025, 20735311, 21530275, 26086359, 43477265, 50166075, 62205933, 64590825, 103676555, 130431795, 217386325, 269559043, 311029665, 518382775, 652158975, 808677129, 1347795215, 1555148325, 4043385645, 6738976075, 20216928225]

約数ペア:

[(1, 20216928225), (3, 6738976075), (5, 4043385645), (13, 1555148325), (15, 1347795215), (25, 808677129), (31, 652158975), (39, 518382775), (65, 311029665), (75, 269559043), (93, 217386325), (155, 130431795), (195, 103676555), (313, 64590825), (325, 62205933), (403, 50166075), (465, 43477265), (775, 26086359), (939, 21530275), (975, 20735311), (1209, 16722025), (1565, 12918165), (2015, 10033215), (2137, 9460425), (2325, 8695453), (4069, 4968525), (4695, 4306055), (6045, 3344405), (6411, 3153475), (7825, 2583633), (9703, 2083575), (10075, 2006643), (10685, 1892085), (12207, 1656175), (20345, 993705), (23475, 861211), (27781, 727725), (29109, 694525), (30225, 668881), (32055, 630695), (48515, 416715), (53425, 378417), (61035, 331235), (66247, 305175), (83343, 242575), (101725, 198741), (126139, 160275), (138905, 145545)]