31244720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2311}}^1$

素因数の和:2350

約数の個数: 60

約数和(自身を含む): 78695856

約数和(自身を除く): 47451136

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, 2311, 2704, 3380, 4622, 6760, 9244, 11555, 13520, 18488, 23110, 30043, 36976, 46220, 60086, 92440, 120172, 150215, 184880, 240344, 300430, 390559, 480688, 600860, 781118, 1201720, 1562236, 1952795, 2403440, 3124472, 3905590, 6248944, 7811180, 15622360, 31244720]

約数ペア:

[(1, 31244720), (2, 15622360), (4, 7811180), (5, 6248944), (8, 3905590), (10, 3124472), (13, 2403440), (16, 1952795), (20, 1562236), (26, 1201720), (40, 781118), (52, 600860), (65, 480688), (80, 390559), (104, 300430), (130, 240344), (169, 184880), (208, 150215), (260, 120172), (338, 92440), (520, 60086), (676, 46220), (845, 36976), (1040, 30043), (1352, 23110), (1690, 18488), (2311, 13520), (2704, 11555), (3380, 9244), (4622, 6760)]