278315980

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1\times {\mathrm{1447}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 598429440

約数和(自身を除く): 320113460

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 163, 236, 295, 326, 590, 652, 815, 1180, 1447, 1630, 2894, 3260, 5788, 7235, 9617, 14470, 19234, 28940, 38468, 48085, 85373, 96170, 170746, 192340, 235861, 341492, 426865, 471722, 853730, 943444, 1179305, 1707460, 2358610, 4717220, 13915799, 27831598, 55663196, 69578995, 139157990, 278315980]

約数ペア:

[(1, 278315980), (2, 139157990), (4, 69578995), (5, 55663196), (10, 27831598), (20, 13915799), (59, 4717220), (118, 2358610), (163, 1707460), (236, 1179305), (295, 943444), (326, 853730), (590, 471722), (652, 426865), (815, 341492), (1180, 235861), (1447, 192340), (1630, 170746), (2894, 96170), (3260, 85373), (5788, 48085), (7235, 38468), (9617, 28940), (14470, 19234)]