205052802880

素因数分解:

$2^6\times 5^1\times {\mathrm{643}}^1\times {\mathrm{996563}}^1$

素因数の和:997223

約数の個数: 56

約数和(自身を含む): 489041858592

約数和(自身を除く): 283989055712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 20576, 25720, 41152, 51440, 102880, 205760, 996563, 1993126, 3986252, 4982815, 7972504, 9965630, 15945008, 19931260, 31890016, 39862520, 63780032, 79725040, 159450080, 318900160, 640790009, 1281580018, 2563160036, 3203950045, 5126320072, 6407900090, 10252640144, 12815800180, 20505280288, 25631600360, 41010560576, 51263200720, 102526401440, 205052802880]

約数ペア:

[(1, 205052802880), (2, 102526401440), (4, 51263200720), (5, 41010560576), (8, 25631600360), (10, 20505280288), (16, 12815800180), (20, 10252640144), (32, 6407900090), (40, 5126320072), (64, 3203950045), (80, 2563160036), (160, 1281580018), (320, 640790009), (643, 318900160), (1286, 159450080), (2572, 79725040), (3215, 63780032), (5144, 39862520), (6430, 31890016), (10288, 19931260), (12860, 15945008), (20576, 9965630), (25720, 7972504), (41152, 4982815), (51440, 3986252), (102880, 1993126), (205760, 996563)]