20519170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 64

約数和(自身を含む): 45847296

約数和(自身を除く): 25328126

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 43, 70, 85, 86, 119, 170, 215, 238, 301, 401, 430, 595, 602, 731, 802, 1190, 1462, 1505, 2005, 2807, 3010, 3655, 4010, 5117, 5614, 6817, 7310, 10234, 13634, 14035, 17243, 25585, 28070, 34085, 34486, 47719, 51170, 68170, 86215, 95438, 120701, 172430, 238595, 241402, 293131, 477190, 586262, 603505, 1207010, 1465655, 2051917, 2931310, 4103834, 10259585, 20519170]

約数ペア:

[(1, 20519170), (2, 10259585), (5, 4103834), (7, 2931310), (10, 2051917), (14, 1465655), (17, 1207010), (34, 603505), (35, 586262), (43, 477190), (70, 293131), (85, 241402), (86, 238595), (119, 172430), (170, 120701), (215, 95438), (238, 86215), (301, 68170), (401, 51170), (430, 47719), (595, 34486), (602, 34085), (731, 28070), (802, 25585), (1190, 17243), (1462, 14035), (1505, 13634), (2005, 10234), (2807, 7310), (3010, 6817), (3655, 5614), (4010, 5117)]