12803440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{947}}^1$

素因数の和:986

約数の個数: 60

約数和(自身を含む): 32268024

約数和(自身を除く): 19464584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 947, 1040, 1352, 1690, 1894, 2704, 3380, 3788, 4735, 6760, 7576, 9470, 12311, 13520, 15152, 18940, 24622, 37880, 49244, 61555, 75760, 98488, 123110, 160043, 196976, 246220, 320086, 492440, 640172, 800215, 984880, 1280344, 1600430, 2560688, 3200860, 6401720, 12803440]

約数ペア:

[(1, 12803440), (2, 6401720), (4, 3200860), (5, 2560688), (8, 1600430), (10, 1280344), (13, 984880), (16, 800215), (20, 640172), (26, 492440), (40, 320086), (52, 246220), (65, 196976), (80, 160043), (104, 123110), (130, 98488), (169, 75760), (208, 61555), (260, 49244), (338, 37880), (520, 24622), (676, 18940), (845, 15152), (947, 13520), (1040, 12311), (1352, 9470), (1690, 7576), (1894, 6760), (2704, 4735), (3380, 3788)]