213088720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{15761}}^1$

素因数の和:15800

約数の個数: 60

約数和(自身を含む): 536506956

約数和(自身を除く): 323418236

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, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 15761, 31522, 63044, 78805, 126088, 157610, 204893, 252176, 315220, 409786, 630440, 819572, 1024465, 1260880, 1639144, 2048930, 2663609, 3278288, 4097860, 5327218, 8195720, 10654436, 13318045, 16391440, 21308872, 26636090, 42617744, 53272180, 106544360, 213088720]

約数ペア:

[(1, 213088720), (2, 106544360), (4, 53272180), (5, 42617744), (8, 26636090), (10, 21308872), (13, 16391440), (16, 13318045), (20, 10654436), (26, 8195720), (40, 5327218), (52, 4097860), (65, 3278288), (80, 2663609), (104, 2048930), (130, 1639144), (169, 1260880), (208, 1024465), (260, 819572), (338, 630440), (520, 409786), (676, 315220), (845, 252176), (1040, 204893), (1352, 157610), (1690, 126088), (2704, 78805), (3380, 63044), (6760, 31522), (13520, 15761)]