388621980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16481}}^1$

素因数の和:16627

約数の個数: 72

約数和(自身を含む): 1187890704

約数和(自身を除く): 799268724

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1310, 1572, 1965, 2358, 2620, 3930, 4716, 5895, 7860, 11790, 16481, 23580, 32962, 49443, 65924, 82405, 98886, 148329, 164810, 197772, 247215, 296658, 329620, 494430, 593316, 741645, 988860, 1483290, 2159011, 2966580, 4318022, 6477033, 8636044, 10795055, 12954066, 19431099, 21590110, 25908132, 32385165, 38862198, 43180220, 64770330, 77724396, 97155495, 129540660, 194310990, 388621980]

約数ペア:

[(1, 388621980), (2, 194310990), (3, 129540660), (4, 97155495), (5, 77724396), (6, 64770330), (9, 43180220), (10, 38862198), (12, 32385165), (15, 25908132), (18, 21590110), (20, 19431099), (30, 12954066), (36, 10795055), (45, 8636044), (60, 6477033), (90, 4318022), (131, 2966580), (180, 2159011), (262, 1483290), (393, 988860), (524, 741645), (655, 593316), (786, 494430), (1179, 329620), (1310, 296658), (1572, 247215), (1965, 197772), (2358, 164810), (2620, 148329), (3930, 98886), (4716, 82405), (5895, 65924), (7860, 49443), (11790, 32962), (16481, 23580)]