78939480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1657}}^1$

素因数の和:2068

約数の個数: 64

約数和(自身を含む): 237558240

約数和(自身を除く): 158618760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 397, 794, 1191, 1588, 1657, 1985, 2382, 3176, 3314, 3970, 4764, 4971, 5955, 6628, 7940, 8285, 9528, 9942, 11910, 13256, 15880, 16570, 19884, 23820, 24855, 33140, 39768, 47640, 49710, 66280, 99420, 198840, 657829, 1315658, 1973487, 2631316, 3289145, 3946974, 5262632, 6578290, 7893948, 9867435, 13156580, 15787896, 19734870, 26313160, 39469740, 78939480]

約数ペア:

[(1, 78939480), (2, 39469740), (3, 26313160), (4, 19734870), (5, 15787896), (6, 13156580), (8, 9867435), (10, 7893948), (12, 6578290), (15, 5262632), (20, 3946974), (24, 3289145), (30, 2631316), (40, 1973487), (60, 1315658), (120, 657829), (397, 198840), (794, 99420), (1191, 66280), (1588, 49710), (1657, 47640), (1985, 39768), (2382, 33140), (3176, 24855), (3314, 23820), (3970, 19884), (4764, 16570), (4971, 15880), (5955, 13256), (6628, 11910), (7940, 9942), (8285, 9528)]