20734040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{727}}^1$

素因数の和:792

約数の個数: 64

約数和(自身を含む): 50319360

約数和(自身を除く): 29585320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 46, 62, 92, 115, 124, 155, 184, 230, 248, 310, 460, 620, 713, 727, 920, 1240, 1426, 1454, 2852, 2908, 3565, 3635, 5704, 5816, 7130, 7270, 14260, 14540, 16721, 22537, 28520, 29080, 33442, 45074, 66884, 83605, 90148, 112685, 133768, 167210, 180296, 225370, 334420, 450740, 518351, 668840, 901480, 1036702, 2073404, 2591755, 4146808, 5183510, 10367020, 20734040]

約数ペア:

[(1, 20734040), (2, 10367020), (4, 5183510), (5, 4146808), (8, 2591755), (10, 2073404), (20, 1036702), (23, 901480), (31, 668840), (40, 518351), (46, 450740), (62, 334420), (92, 225370), (115, 180296), (124, 167210), (155, 133768), (184, 112685), (230, 90148), (248, 83605), (310, 66884), (460, 45074), (620, 33442), (713, 29080), (727, 28520), (920, 22537), (1240, 16721), (1426, 14540), (1454, 14260), (2852, 7270), (2908, 7130), (3565, 5816), (3635, 5704)]