19117180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{953}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 43273440

約数和(自身を除く): 24156260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 59, 68, 85, 118, 170, 236, 295, 340, 590, 953, 1003, 1180, 1906, 2006, 3812, 4012, 4765, 5015, 9530, 10030, 16201, 19060, 20060, 32402, 56227, 64804, 81005, 112454, 162010, 224908, 281135, 324020, 562270, 955859, 1124540, 1911718, 3823436, 4779295, 9558590, 19117180]

約数ペア:

[(1, 19117180), (2, 9558590), (4, 4779295), (5, 3823436), (10, 1911718), (17, 1124540), (20, 955859), (34, 562270), (59, 324020), (68, 281135), (85, 224908), (118, 162010), (170, 112454), (236, 81005), (295, 64804), (340, 56227), (590, 32402), (953, 20060), (1003, 19060), (1180, 16201), (1906, 10030), (2006, 9530), (3812, 5015), (4012, 4765)]