19513000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 128

約数和(自身を含む): 52416000

約数和(自身を除く): 32903000

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 25, 26, 38, 40, 50, 52, 65, 76, 79, 95, 100, 104, 125, 130, 152, 158, 190, 200, 247, 250, 260, 316, 325, 380, 395, 475, 494, 500, 520, 632, 650, 760, 790, 950, 988, 1000, 1027, 1235, 1300, 1501, 1580, 1625, 1900, 1975, 1976, 2054, 2375, 2470, 2600, 3002, 3160, 3250, 3800, 3950, 4108, 4750, 4940, 5135, 6004, 6175, 6500, 7505, 7900, 8216, 9500, 9875, 9880, 10270, 12008, 12350, 13000, 15010, 15800, 19000, 19513, 19750, 20540, 24700, 25675, 30020, 30875, 37525, 39026, 39500, 41080, 49400, 51350, 60040, 61750, 75050, 78052, 79000, 97565, 102700, 123500, 128375, 150100, 156104, 187625, 195130, 205400, 247000, 256750, 300200, 375250, 390260, 487825, 513500, 750500, 780520, 975650, 1027000, 1501000, 1951300, 2439125, 3902600, 4878250, 9756500, 19513000]

約数ペア:

[(1, 19513000), (2, 9756500), (4, 4878250), (5, 3902600), (8, 2439125), (10, 1951300), (13, 1501000), (19, 1027000), (20, 975650), (25, 780520), (26, 750500), (38, 513500), (40, 487825), (50, 390260), (52, 375250), (65, 300200), (76, 256750), (79, 247000), (95, 205400), (100, 195130), (104, 187625), (125, 156104), (130, 150100), (152, 128375), (158, 123500), (190, 102700), (200, 97565), (247, 79000), (250, 78052), (260, 75050), (316, 61750), (325, 60040), (380, 51350), (395, 49400), (475, 41080), (494, 39500), (500, 39026), (520, 37525), (632, 30875), (650, 30020), (760, 25675), (790, 24700), (950, 20540), (988, 19750), (1000, 19513), (1027, 19000), (1235, 15800), (1300, 15010), (1501, 13000), (1580, 12350), (1625, 12008), (1900, 10270), (1975, 9880), (1976, 9875), (2054, 9500), (2375, 8216), (2470, 7900), (2600, 7505), (3002, 6500), (3160, 6175), (3250, 6004), (3800, 5135), (3950, 4940), (4108, 4750)]