198853840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1$

素因数の和:668

約数の個数: 80

約数和(自身を含む): 480969216

約数和(自身を除く): 282115376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 181, 248, 310, 362, 443, 496, 620, 724, 886, 905, 1240, 1448, 1772, 1810, 2215, 2480, 2896, 3544, 3620, 4430, 5611, 7088, 7240, 8860, 11222, 13733, 14480, 17720, 22444, 27466, 28055, 35440, 44888, 54932, 56110, 68665, 80183, 89776, 109864, 112220, 137330, 160366, 219728, 224440, 274660, 320732, 400915, 448880, 549320, 641464, 801830, 1098640, 1282928, 1603660, 2485673, 3207320, 4971346, 6414640, 9942692, 12428365, 19885384, 24856730, 39770768, 49713460, 99426920, 198853840]

約数ペア:

[(1, 198853840), (2, 99426920), (4, 49713460), (5, 39770768), (8, 24856730), (10, 19885384), (16, 12428365), (20, 9942692), (31, 6414640), (40, 4971346), (62, 3207320), (80, 2485673), (124, 1603660), (155, 1282928), (181, 1098640), (248, 801830), (310, 641464), (362, 549320), (443, 448880), (496, 400915), (620, 320732), (724, 274660), (886, 224440), (905, 219728), (1240, 160366), (1448, 137330), (1772, 112220), (1810, 109864), (2215, 89776), (2480, 80183), (2896, 68665), (3544, 56110), (3620, 54932), (4430, 44888), (5611, 35440), (7088, 28055), (7240, 27466), (8860, 22444), (11222, 17720), (13733, 14480)]