180785920

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{20177}}^1$

素因数の和:20205

約数の個数: 72

約数和(自身を含む): 494925984

約数和(自身を除く): 314140064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 20177, 40354, 80708, 100885, 141239, 161416, 201770, 282478, 322832, 403540, 564956, 645664, 706195, 807080, 1129912, 1291328, 1412390, 1614160, 2259824, 2582656, 2824780, 3228320, 4519648, 5165312, 5649560, 6456640, 9039296, 11299120, 12913280, 18078592, 22598240, 25826560, 36157184, 45196480, 90392960, 180785920]

約数ペア:

[(1, 180785920), (2, 90392960), (4, 45196480), (5, 36157184), (7, 25826560), (8, 22598240), (10, 18078592), (14, 12913280), (16, 11299120), (20, 9039296), (28, 6456640), (32, 5649560), (35, 5165312), (40, 4519648), (56, 3228320), (64, 2824780), (70, 2582656), (80, 2259824), (112, 1614160), (128, 1412390), (140, 1291328), (160, 1129912), (224, 807080), (256, 706195), (280, 645664), (320, 564956), (448, 403540), (560, 322832), (640, 282478), (896, 201770), (1120, 161416), (1280, 141239), (1792, 100885), (2240, 80708), (4480, 40354), (8960, 20177)]