640039766

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{8663}}^1$

素因数の和:8776

約数の個数: 32

約数和(自身を含む): 1061097408

約数和(自身を除く): 421057642

約数列:

[1, 2, 17, 34, 41, 53, 82, 106, 697, 901, 1394, 1802, 2173, 4346, 8663, 17326, 36941, 73882, 147271, 294542, 355183, 459139, 710366, 918278, 6038111, 7805363, 12076222, 15610726, 18824699, 37649398, 320019883, 640039766]

約数ペア:

[(1, 640039766), (2, 320019883), (17, 37649398), (34, 18824699), (41, 15610726), (53, 12076222), (82, 7805363), (106, 6038111), (697, 918278), (901, 710366), (1394, 459139), (1802, 355183), (2173, 294542), (4346, 147271), (8663, 73882), (17326, 36941)]