20488930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 27774110

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 41, 55, 59, 70, 77, 82, 110, 118, 121, 154, 205, 242, 287, 295, 385, 410, 413, 451, 574, 590, 605, 649, 770, 826, 847, 902, 1210, 1298, 1435, 1694, 2065, 2255, 2419, 2870, 3157, 3245, 4130, 4235, 4510, 4543, 4838, 4961, 6314, 6490, 7139, 8470, 9086, 9922, 12095, 14278, 15785, 16933, 22715, 24190, 24805, 26609, 31570, 33866, 34727, 35695, 45430, 49610, 49973, 53218, 69454, 71390, 84665, 99946, 133045, 169330, 173635, 186263, 249865, 266090, 292699, 347270, 372526, 499730, 585398, 931315, 1463495, 1862630, 2048893, 2926990, 4097786, 10244465, 20488930]

約数ペア:

[(1, 20488930), (2, 10244465), (5, 4097786), (7, 2926990), (10, 2048893), (11, 1862630), (14, 1463495), (22, 931315), (35, 585398), (41, 499730), (55, 372526), (59, 347270), (70, 292699), (77, 266090), (82, 249865), (110, 186263), (118, 173635), (121, 169330), (154, 133045), (205, 99946), (242, 84665), (287, 71390), (295, 69454), (385, 53218), (410, 49973), (413, 49610), (451, 45430), (574, 35695), (590, 34727), (605, 33866), (649, 31570), (770, 26609), (826, 24805), (847, 24190), (902, 22715), (1210, 16933), (1298, 15785), (1435, 14278), (1694, 12095), (2065, 9922), (2255, 9086), (2419, 8470), (2870, 7139), (3157, 6490), (3245, 6314), (4130, 4961), (4235, 4838), (4510, 4543)]