21063937600

素因数分解:

$2^6\times 5^2\times {\mathrm{2749}}^1\times {\mathrm{4789}}^1$

素因数の和:7560

約数の個数: 84

約数和(自身を含む): 51860132500

約数和(自身を除く): 30796194900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 2749, 4789, 5498, 9578, 10996, 13745, 19156, 21992, 23945, 27490, 38312, 43984, 47890, 54980, 68725, 76624, 87968, 95780, 109960, 119725, 137450, 153248, 175936, 191560, 219920, 239450, 274900, 306496, 383120, 439840, 478900, 549800, 766240, 879680, 957800, 1099600, 1532480, 1915600, 2199200, 3831200, 4398400, 7662400, 13164961, 26329922, 52659844, 65824805, 105319688, 131649610, 210639376, 263299220, 329124025, 421278752, 526598440, 658248050, 842557504, 1053196880, 1316496100, 2106393760, 2632992200, 4212787520, 5265984400, 10531968800, 21063937600]

約数ペア:

[(1, 21063937600), (2, 10531968800), (4, 5265984400), (5, 4212787520), (8, 2632992200), (10, 2106393760), (16, 1316496100), (20, 1053196880), (25, 842557504), (32, 658248050), (40, 526598440), (50, 421278752), (64, 329124025), (80, 263299220), (100, 210639376), (160, 131649610), (200, 105319688), (320, 65824805), (400, 52659844), (800, 26329922), (1600, 13164961), (2749, 7662400), (4789, 4398400), (5498, 3831200), (9578, 2199200), (10996, 1915600), (13745, 1532480), (19156, 1099600), (21992, 957800), (23945, 879680), (27490, 766240), (38312, 549800), (43984, 478900), (47890, 439840), (54980, 383120), (68725, 306496), (76624, 274900), (87968, 239450), (95780, 219920), (109960, 191560), (119725, 175936), (137450, 153248)]