19691840

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:232

約数の個数: 112

約数和(自身を含む): 54864000

約数和(自身を除く): 35172160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 112, 118, 140, 149, 160, 224, 236, 280, 295, 298, 320, 413, 448, 472, 560, 590, 596, 745, 826, 944, 1043, 1120, 1180, 1192, 1490, 1652, 1888, 2065, 2086, 2240, 2360, 2384, 2980, 3304, 3776, 4130, 4172, 4720, 4768, 5215, 5960, 6608, 8260, 8344, 8791, 9440, 9536, 10430, 11920, 13216, 16520, 16688, 17582, 18880, 20860, 23840, 26432, 33040, 33376, 35164, 41720, 43955, 47680, 61537, 66080, 66752, 70328, 83440, 87910, 123074, 132160, 140656, 166880, 175820, 246148, 281312, 307685, 333760, 351640, 492296, 562624, 615370, 703280, 984592, 1230740, 1406560, 1969184, 2461480, 2813120, 3938368, 4922960, 9845920, 19691840]

約数ペア:

[(1, 19691840), (2, 9845920), (4, 4922960), (5, 3938368), (7, 2813120), (8, 2461480), (10, 1969184), (14, 1406560), (16, 1230740), (20, 984592), (28, 703280), (32, 615370), (35, 562624), (40, 492296), (56, 351640), (59, 333760), (64, 307685), (70, 281312), (80, 246148), (112, 175820), (118, 166880), (140, 140656), (149, 132160), (160, 123074), (224, 87910), (236, 83440), (280, 70328), (295, 66752), (298, 66080), (320, 61537), (413, 47680), (448, 43955), (472, 41720), (560, 35164), (590, 33376), (596, 33040), (745, 26432), (826, 23840), (944, 20860), (1043, 18880), (1120, 17582), (1180, 16688), (1192, 16520), (1490, 13216), (1652, 11920), (1888, 10430), (2065, 9536), (2086, 9440), (2240, 8791), (2360, 8344), (2384, 8260), (2980, 6608), (3304, 5960), (3776, 5215), (4130, 4768), (4172, 4720)]