199818560

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20143}}^1$

素因数の和:20191

約数の個数: 56

約数和(自身を含む): 491191296

約数和(自身を除く): 291372736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20143, 40286, 80572, 100715, 161144, 201430, 322288, 402860, 624433, 644576, 805720, 1248866, 1289152, 1611440, 2497732, 3122165, 3222880, 4995464, 6244330, 6445760, 9990928, 12488660, 19981856, 24977320, 39963712, 49954640, 99909280, 199818560]

約数ペア:

[(1, 199818560), (2, 99909280), (4, 49954640), (5, 39963712), (8, 24977320), (10, 19981856), (16, 12488660), (20, 9990928), (31, 6445760), (32, 6244330), (40, 4995464), (62, 3222880), (64, 3122165), (80, 2497732), (124, 1611440), (155, 1289152), (160, 1248866), (248, 805720), (310, 644576), (320, 624433), (496, 402860), (620, 322288), (992, 201430), (1240, 161144), (1984, 100715), (2480, 80572), (4960, 40286), (9920, 20143)]