19748867905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8243}}^1$

素因数の和:8362

約数の個数: 64

約数和(自身を含む): 27921438720

約数和(自身を除く): 8172570815

約数列:

[1, 5, 13, 29, 31, 41, 65, 145, 155, 205, 377, 403, 533, 899, 1189, 1271, 1885, 2015, 2665, 4495, 5945, 6355, 8243, 11687, 15457, 16523, 36859, 41215, 58435, 77285, 82615, 107159, 184295, 239047, 255533, 337963, 479167, 535795, 1195235, 1277665, 1689815, 2395835, 3107611, 3321929, 4393519, 7410457, 9800927, 10476853, 15538055, 16609645, 21967595, 37052285, 49004635, 52384265, 96335941, 127412051, 136199089, 303828737, 481679705, 637060255, 680995445, 1519143685, 3949773581, 19748867905]

約数ペア:

[(1, 19748867905), (5, 3949773581), (13, 1519143685), (29, 680995445), (31, 637060255), (41, 481679705), (65, 303828737), (145, 136199089), (155, 127412051), (205, 96335941), (377, 52384265), (403, 49004635), (533, 37052285), (899, 21967595), (1189, 16609645), (1271, 15538055), (1885, 10476853), (2015, 9800927), (2665, 7410457), (4495, 4393519), (5945, 3321929), (6355, 3107611), (8243, 2395835), (11687, 1689815), (15457, 1277665), (16523, 1195235), (36859, 535795), (41215, 479167), (58435, 337963), (77285, 255533), (82615, 239047), (107159, 184295)]