1915693220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{277}}^1\times {\mathrm{7057}}^1$

素因数の和:7357

約数の個数: 72

約数和(自身を含む): 4697324856

約数和(自身を除く): 2781631636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 277, 490, 554, 980, 1108, 1385, 1939, 2770, 3878, 5540, 7057, 7756, 9695, 13573, 14114, 19390, 27146, 28228, 35285, 38780, 49399, 54292, 67865, 70570, 98798, 135730, 141140, 197596, 246995, 271460, 345793, 493990, 691586, 987980, 1383172, 1728965, 1954789, 3457930, 3909578, 6915860, 7819156, 9773945, 13683523, 19547890, 27367046, 39095780, 54734092, 68417615, 95784661, 136835230, 191569322, 273670460, 383138644, 478923305, 957846610, 1915693220]

約数ペア:

[(1, 1915693220), (2, 957846610), (4, 478923305), (5, 383138644), (7, 273670460), (10, 191569322), (14, 136835230), (20, 95784661), (28, 68417615), (35, 54734092), (49, 39095780), (70, 27367046), (98, 19547890), (140, 13683523), (196, 9773945), (245, 7819156), (277, 6915860), (490, 3909578), (554, 3457930), (980, 1954789), (1108, 1728965), (1385, 1383172), (1939, 987980), (2770, 691586), (3878, 493990), (5540, 345793), (7057, 271460), (7756, 246995), (9695, 197596), (13573, 141140), (14114, 135730), (19390, 98798), (27146, 70570), (28228, 67865), (35285, 54292), (38780, 49399)]