25125880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 61437600

約数和(自身を除く): 36311720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 211, 229, 260, 422, 458, 520, 844, 916, 1055, 1145, 1688, 1832, 2110, 2290, 2743, 2977, 4220, 4580, 5486, 5954, 8440, 9160, 10972, 11908, 13715, 14885, 21944, 23816, 27430, 29770, 48319, 54860, 59540, 96638, 109720, 119080, 193276, 241595, 386552, 483190, 628147, 966380, 1256294, 1932760, 2512588, 3140735, 5025176, 6281470, 12562940, 25125880]

約数ペア:

[(1, 25125880), (2, 12562940), (4, 6281470), (5, 5025176), (8, 3140735), (10, 2512588), (13, 1932760), (20, 1256294), (26, 966380), (40, 628147), (52, 483190), (65, 386552), (104, 241595), (130, 193276), (211, 119080), (229, 109720), (260, 96638), (422, 59540), (458, 54860), (520, 48319), (844, 29770), (916, 27430), (1055, 23816), (1145, 21944), (1688, 14885), (1832, 13715), (2110, 11908), (2290, 10972), (2743, 9160), (2977, 8440), (4220, 5954), (4580, 5486)]