408055856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1307}}^1$

素因数の和:1426

約数の個数: 80

約数和(自身を含む): 908275200

約数和(自身を除く): 500219344

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 79, 104, 152, 158, 208, 247, 304, 316, 494, 632, 988, 1027, 1264, 1307, 1501, 1976, 2054, 2614, 3002, 3952, 4108, 5228, 6004, 8216, 10456, 12008, 16432, 16991, 19513, 20912, 24016, 24833, 33982, 39026, 49666, 67964, 78052, 99332, 103253, 135928, 156104, 198664, 206506, 271856, 312208, 322829, 397328, 413012, 645658, 826024, 1291316, 1342289, 1652048, 1961807, 2582632, 2684578, 3923614, 5165264, 5369156, 7847228, 10738312, 15694456, 21476624, 25503491, 31388912, 51006982, 102013964, 204027928, 408055856]

約数ペア:

[(1, 408055856), (2, 204027928), (4, 102013964), (8, 51006982), (13, 31388912), (16, 25503491), (19, 21476624), (26, 15694456), (38, 10738312), (52, 7847228), (76, 5369156), (79, 5165264), (104, 3923614), (152, 2684578), (158, 2582632), (208, 1961807), (247, 1652048), (304, 1342289), (316, 1291316), (494, 826024), (632, 645658), (988, 413012), (1027, 397328), (1264, 322829), (1307, 312208), (1501, 271856), (1976, 206506), (2054, 198664), (2614, 156104), (3002, 135928), (3952, 103253), (4108, 99332), (5228, 78052), (6004, 67964), (8216, 49666), (10456, 39026), (12008, 33982), (16432, 24833), (16991, 24016), (19513, 20912)]