401067880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{929}}^1$

素因数の和:1234

約数の個数: 64

約数和(自身を含む): 928065600

約数和(自身を除く): 526997720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 251, 344, 430, 502, 860, 929, 1004, 1255, 1720, 1858, 2008, 2510, 3716, 4645, 5020, 7432, 9290, 10040, 10793, 18580, 21586, 37160, 39947, 43172, 53965, 79894, 86344, 107930, 159788, 199735, 215860, 233179, 319576, 399470, 431720, 466358, 798940, 932716, 1165895, 1597880, 1865432, 2331790, 4663580, 9327160, 10026697, 20053394, 40106788, 50133485, 80213576, 100266970, 200533940, 401067880]

約数ペア:

[(1, 401067880), (2, 200533940), (4, 100266970), (5, 80213576), (8, 50133485), (10, 40106788), (20, 20053394), (40, 10026697), (43, 9327160), (86, 4663580), (172, 2331790), (215, 1865432), (251, 1597880), (344, 1165895), (430, 932716), (502, 798940), (860, 466358), (929, 431720), (1004, 399470), (1255, 319576), (1720, 233179), (1858, 215860), (2008, 199735), (2510, 159788), (3716, 107930), (4645, 86344), (5020, 79894), (7432, 53965), (9290, 43172), (10040, 39947), (10793, 37160), (18580, 21586)]