19577950

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:218

約数の個数: 72

約数和(自身を含む): 43383384

約数和(自身を除く): 23805434

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 61, 70, 98, 122, 131, 175, 245, 262, 305, 350, 427, 490, 610, 655, 854, 917, 1225, 1310, 1525, 1834, 2135, 2450, 2989, 3050, 3275, 4270, 4585, 5978, 6419, 6550, 7991, 9170, 10675, 12838, 14945, 15982, 21350, 22925, 29890, 32095, 39955, 45850, 55937, 64190, 74725, 79910, 111874, 149450, 160475, 199775, 279685, 320950, 391559, 399550, 559370, 783118, 1398425, 1957795, 2796850, 3915590, 9788975, 19577950]

約数ペア:

[(1, 19577950), (2, 9788975), (5, 3915590), (7, 2796850), (10, 1957795), (14, 1398425), (25, 783118), (35, 559370), (49, 399550), (50, 391559), (61, 320950), (70, 279685), (98, 199775), (122, 160475), (131, 149450), (175, 111874), (245, 79910), (262, 74725), (305, 64190), (350, 55937), (427, 45850), (490, 39955), (610, 32095), (655, 29890), (854, 22925), (917, 21350), (1225, 15982), (1310, 14945), (1525, 12838), (1834, 10675), (2135, 9170), (2450, 7991), (2989, 6550), (3050, 6419), (3275, 5978), (4270, 4585)]