13438700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:687

約数の個数: 72

約数和(自身を含む): 33539520

約数和(自身を除く): 20100820

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 643, 836, 950, 1045, 1100, 1286, 1900, 2090, 2572, 3215, 4180, 5225, 6430, 7073, 10450, 12217, 12860, 14146, 16075, 20900, 24434, 28292, 32150, 35365, 48868, 61085, 64300, 70730, 122170, 134387, 141460, 176825, 244340, 268774, 305425, 353650, 537548, 610850, 671935, 707300, 1221700, 1343870, 2687740, 3359675, 6719350, 13438700]

約数ペア:

[(1, 13438700), (2, 6719350), (4, 3359675), (5, 2687740), (10, 1343870), (11, 1221700), (19, 707300), (20, 671935), (22, 610850), (25, 537548), (38, 353650), (44, 305425), (50, 268774), (55, 244340), (76, 176825), (95, 141460), (100, 134387), (110, 122170), (190, 70730), (209, 64300), (220, 61085), (275, 48868), (380, 35365), (418, 32150), (475, 28292), (550, 24434), (643, 20900), (836, 16075), (950, 14146), (1045, 12860), (1100, 12217), (1286, 10450), (1900, 7073), (2090, 6430), (2572, 5225), (3215, 4180)]