19668830

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 39890880

約数和(自身を除く): 20222050

約数列:

[1, 2, 5, 10, 17, 34, 37, 53, 59, 74, 85, 106, 118, 170, 185, 265, 295, 370, 530, 590, 629, 901, 1003, 1258, 1802, 1961, 2006, 2183, 3127, 3145, 3922, 4366, 4505, 5015, 6254, 6290, 9010, 9805, 10030, 10915, 15635, 19610, 21830, 31270, 33337, 37111, 53159, 66674, 74222, 106318, 115699, 166685, 185555, 231398, 265795, 333370, 371110, 531590, 578495, 1156990, 1966883, 3933766, 9834415, 19668830]

約数ペア:

[(1, 19668830), (2, 9834415), (5, 3933766), (10, 1966883), (17, 1156990), (34, 578495), (37, 531590), (53, 371110), (59, 333370), (74, 265795), (85, 231398), (106, 185555), (118, 166685), (170, 115699), (185, 106318), (265, 74222), (295, 66674), (370, 53159), (530, 37111), (590, 33337), (629, 31270), (901, 21830), (1003, 19610), (1258, 15635), (1802, 10915), (1961, 10030), (2006, 9805), (2183, 9010), (3127, 6290), (3145, 6254), (3922, 5015), (4366, 4505)]