19898889200

素因数分解:

$2^4\times 5^2\times {\mathrm{2137}}^1\times {\mathrm{23279}}^1$

素因数の和:25434

約数の個数: 60

約数和(自身を含む): 47831507040

約数和(自身を除く): 27932617840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2137, 4274, 8548, 10685, 17096, 21370, 23279, 34192, 42740, 46558, 53425, 85480, 93116, 106850, 116395, 170960, 186232, 213700, 232790, 372464, 427400, 465580, 581975, 854800, 931160, 1163950, 1862320, 2327900, 4655800, 9311600, 49747223, 99494446, 198988892, 248736115, 397977784, 497472230, 795955568, 994944460, 1243680575, 1989888920, 2487361150, 3979777840, 4974722300, 9949444600, 19898889200]

約数ペア:

[(1, 19898889200), (2, 9949444600), (4, 4974722300), (5, 3979777840), (8, 2487361150), (10, 1989888920), (16, 1243680575), (20, 994944460), (25, 795955568), (40, 497472230), (50, 397977784), (80, 248736115), (100, 198988892), (200, 99494446), (400, 49747223), (2137, 9311600), (4274, 4655800), (8548, 2327900), (10685, 1862320), (17096, 1163950), (21370, 931160), (23279, 854800), (34192, 581975), (42740, 465580), (46558, 427400), (53425, 372464), (85480, 232790), (93116, 213700), (106850, 186232), (116395, 170960)]