128865830360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{486433}}^1$

素因数の和:486660

約数の個数: 64

約数和(自身を含む): 299448770400

約数和(自身を除く): 170582940040

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 179, 185, 296, 358, 370, 716, 740, 895, 1432, 1480, 1790, 3580, 6623, 7160, 13246, 26492, 33115, 52984, 66230, 132460, 264920, 486433, 972866, 1945732, 2432165, 3891464, 4864330, 9728660, 17998021, 19457320, 35996042, 71992084, 87071507, 89990105, 143984168, 174143014, 179980210, 348286028, 359960420, 435357535, 696572056, 719920840, 870715070, 1741430140, 3221645759, 3482860280, 6443291518, 12886583036, 16108228795, 25773166072, 32216457590, 64432915180, 128865830360]

約数ペア:

[(1, 128865830360), (2, 64432915180), (4, 32216457590), (5, 25773166072), (8, 16108228795), (10, 12886583036), (20, 6443291518), (37, 3482860280), (40, 3221645759), (74, 1741430140), (148, 870715070), (179, 719920840), (185, 696572056), (296, 435357535), (358, 359960420), (370, 348286028), (716, 179980210), (740, 174143014), (895, 143984168), (1432, 89990105), (1480, 87071507), (1790, 71992084), (3580, 35996042), (6623, 19457320), (7160, 17998021), (13246, 9728660), (26492, 4864330), (33115, 3891464), (52984, 2432165), (66230, 1945732), (132460, 972866), (264920, 486433)]