28942840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1432

約数の個数: 64

約数和(自身を含む): 71228160

約数和(自身を除く): 42285320

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 31, 34, 40, 62, 68, 85, 124, 136, 155, 170, 248, 310, 340, 527, 620, 680, 1054, 1240, 1373, 2108, 2635, 2746, 4216, 5270, 5492, 6865, 10540, 10984, 13730, 21080, 23341, 27460, 42563, 46682, 54920, 85126, 93364, 116705, 170252, 186728, 212815, 233410, 340504, 425630, 466820, 723571, 851260, 933640, 1447142, 1702520, 2894284, 3617855, 5788568, 7235710, 14471420, 28942840]

約数ペア:

[(1, 28942840), (2, 14471420), (4, 7235710), (5, 5788568), (8, 3617855), (10, 2894284), (17, 1702520), (20, 1447142), (31, 933640), (34, 851260), (40, 723571), (62, 466820), (68, 425630), (85, 340504), (124, 233410), (136, 212815), (155, 186728), (170, 170252), (248, 116705), (310, 93364), (340, 85126), (527, 54920), (620, 46682), (680, 42563), (1054, 27460), (1240, 23341), (1373, 21080), (2108, 13730), (2635, 10984), (2746, 10540), (4216, 6865), (5270, 5492)]