211399180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1\times {\mathrm{613}}^1$

素因数の和:1066

約数の個数: 48

約数和(自身を含む): 456138144

約数和(自身を除く): 244738964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 401, 430, 613, 802, 860, 1226, 1604, 2005, 2452, 3065, 4010, 6130, 8020, 12260, 17243, 26359, 34486, 52718, 68972, 86215, 105436, 131795, 172430, 245813, 263590, 344860, 491626, 527180, 983252, 1229065, 2458130, 4916260, 10569959, 21139918, 42279836, 52849795, 105699590, 211399180]

約数ペア:

[(1, 211399180), (2, 105699590), (4, 52849795), (5, 42279836), (10, 21139918), (20, 10569959), (43, 4916260), (86, 2458130), (172, 1229065), (215, 983252), (401, 527180), (430, 491626), (613, 344860), (802, 263590), (860, 245813), (1226, 172430), (1604, 131795), (2005, 105436), (2452, 86215), (3065, 68972), (4010, 52718), (6130, 34486), (8020, 26359), (12260, 17243)]