20482968105

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:843

約数の個数: 96

約数和(自身を含む): 37201226400

約数和(自身を除く): 16718258295

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 157, 257, 261, 389, 435, 471, 771, 785, 1167, 1285, 1305, 1413, 1945, 2313, 2355, 3501, 3855, 4553, 5835, 7065, 7453, 11281, 11565, 13659, 17505, 22359, 22765, 33843, 37265, 40349, 40977, 56405, 61073, 67077, 68295, 99973, 101529, 111795, 121047, 169215, 183219, 201745, 204885, 299919, 305365, 335385, 363141, 499865, 507645, 549657, 605235, 899757, 916095, 1170121, 1499595, 1771117, 1815705, 2748285, 2899217, 3510363, 4498785, 5313351, 5850605, 8697651, 8855585, 10531089, 14496085, 15695761, 15940053, 17551815, 26092953, 26566755, 43488255, 47087283, 52655445, 78478805, 79700265, 130464765, 141261849, 235436415, 455177069, 706309245, 1365531207, 2275885345, 4096593621, 6827656035, 20482968105]

約数ペア:

[(1, 20482968105), (3, 6827656035), (5, 4096593621), (9, 2275885345), (15, 1365531207), (29, 706309245), (45, 455177069), (87, 235436415), (145, 141261849), (157, 130464765), (257, 79700265), (261, 78478805), (389, 52655445), (435, 47087283), (471, 43488255), (771, 26566755), (785, 26092953), (1167, 17551815), (1285, 15940053), (1305, 15695761), (1413, 14496085), (1945, 10531089), (2313, 8855585), (2355, 8697651), (3501, 5850605), (3855, 5313351), (4553, 4498785), (5835, 3510363), (7065, 2899217), (7453, 2748285), (11281, 1815705), (11565, 1771117), (13659, 1499595), (17505, 1170121), (22359, 916095), (22765, 899757), (33843, 605235), (37265, 549657), (40349, 507645), (40977, 499865), (56405, 363141), (61073, 335385), (67077, 305365), (68295, 299919), (99973, 204885), (101529, 201745), (111795, 183219), (121047, 169215)]