19770000

素因数分解:

$2^4\times 3^1\times 5^4\times {\mathrm{659}}^1$

素因数の和:690

約数の個数: 100

約数和(自身を含む): 63917040

約数和(自身を除く): 44147040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 125, 150, 200, 240, 250, 300, 375, 400, 500, 600, 625, 659, 750, 1000, 1200, 1250, 1318, 1500, 1875, 1977, 2000, 2500, 2636, 3000, 3295, 3750, 3954, 5000, 5272, 6000, 6590, 7500, 7908, 9885, 10000, 10544, 13180, 15000, 15816, 16475, 19770, 26360, 30000, 31632, 32950, 39540, 49425, 52720, 65900, 79080, 82375, 98850, 131800, 158160, 164750, 197700, 247125, 263600, 329500, 395400, 411875, 494250, 659000, 790800, 823750, 988500, 1235625, 1318000, 1647500, 1977000, 2471250, 3295000, 3954000, 4942500, 6590000, 9885000, 19770000]

約数ペア:

[(1, 19770000), (2, 9885000), (3, 6590000), (4, 4942500), (5, 3954000), (6, 3295000), (8, 2471250), (10, 1977000), (12, 1647500), (15, 1318000), (16, 1235625), (20, 988500), (24, 823750), (25, 790800), (30, 659000), (40, 494250), (48, 411875), (50, 395400), (60, 329500), (75, 263600), (80, 247125), (100, 197700), (120, 164750), (125, 158160), (150, 131800), (200, 98850), (240, 82375), (250, 79080), (300, 65900), (375, 52720), (400, 49425), (500, 39540), (600, 32950), (625, 31632), (659, 30000), (750, 26360), (1000, 19770), (1200, 16475), (1250, 15816), (1318, 15000), (1500, 13180), (1875, 10544), (1977, 10000), (2000, 9885), (2500, 7908), (2636, 7500), (3000, 6590), (3295, 6000), (3750, 5272), (3954, 5000)]