2780474060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{80407}}^1$

素因数の和:80455

約数の個数: 96

約数和(自身を含む): 7564784640

約数和(自身を除く): 4784310580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 665, 910, 988, 1235, 1330, 1729, 1820, 2470, 2660, 3458, 4940, 6916, 8645, 17290, 34580, 80407, 160814, 321628, 402035, 562849, 804070, 1045291, 1125698, 1527733, 1608140, 2090582, 2251396, 2814245, 3055466, 4181164, 5226455, 5628490, 6110932, 7317037, 7638665, 10452910, 10694131, 11256980, 14634074, 15277330, 19860529, 20905820, 21388262, 29268148, 30554660, 36585185, 39721058, 42776524, 53470655, 73170370, 79442116, 99302645, 106941310, 139023703, 146340740, 198605290, 213882620, 278047406, 397210580, 556094812, 695118515, 1390237030, 2780474060]

約数ペア:

[(1, 2780474060), (2, 1390237030), (4, 695118515), (5, 556094812), (7, 397210580), (10, 278047406), (13, 213882620), (14, 198605290), (19, 146340740), (20, 139023703), (26, 106941310), (28, 99302645), (35, 79442116), (38, 73170370), (52, 53470655), (65, 42776524), (70, 39721058), (76, 36585185), (91, 30554660), (95, 29268148), (130, 21388262), (133, 20905820), (140, 19860529), (182, 15277330), (190, 14634074), (247, 11256980), (260, 10694131), (266, 10452910), (364, 7638665), (380, 7317037), (455, 6110932), (494, 5628490), (532, 5226455), (665, 4181164), (910, 3055466), (988, 2814245), (1235, 2251396), (1330, 2090582), (1729, 1608140), (1820, 1527733), (2470, 1125698), (2660, 1045291), (3458, 804070), (4940, 562849), (6916, 402035), (8645, 321628), (17290, 160814), (34580, 80407)]