1555142920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{463}}^1\times {\mathrm{641}}^1$

素因数の和:1246

約数の個数: 64

約数和(自身を含む): 3538909440

約数和(自身を除く): 1983766520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 463, 524, 641, 655, 926, 1048, 1282, 1310, 1852, 2315, 2564, 2620, 3205, 3704, 4630, 5128, 5240, 6410, 9260, 12820, 18520, 25640, 60653, 83971, 121306, 167942, 242612, 296783, 303265, 335884, 419855, 485224, 593566, 606530, 671768, 839710, 1187132, 1213060, 1483915, 1679420, 2374264, 2426120, 2967830, 3358840, 5935660, 11871320, 38878573, 77757146, 155514292, 194392865, 311028584, 388785730, 777571460, 1555142920]

約数ペア:

[(1, 1555142920), (2, 777571460), (4, 388785730), (5, 311028584), (8, 194392865), (10, 155514292), (20, 77757146), (40, 38878573), (131, 11871320), (262, 5935660), (463, 3358840), (524, 2967830), (641, 2426120), (655, 2374264), (926, 1679420), (1048, 1483915), (1282, 1213060), (1310, 1187132), (1852, 839710), (2315, 671768), (2564, 606530), (2620, 593566), (3205, 485224), (3704, 419855), (4630, 335884), (5128, 303265), (5240, 296783), (6410, 242612), (9260, 167942), (12820, 121306), (18520, 83971), (25640, 60653)]