48782500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 120

約数和(自身を含む): 122460800

約数和(自身を除く): 73678300

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 25, 26, 38, 50, 52, 65, 76, 79, 95, 100, 125, 130, 158, 190, 247, 250, 260, 316, 325, 380, 395, 475, 494, 500, 625, 650, 790, 950, 988, 1027, 1235, 1250, 1300, 1501, 1580, 1625, 1900, 1975, 2054, 2375, 2470, 2500, 3002, 3250, 3950, 4108, 4750, 4940, 5135, 6004, 6175, 6500, 7505, 7900, 8125, 9500, 9875, 10270, 11875, 12350, 15010, 16250, 19513, 19750, 20540, 23750, 24700, 25675, 30020, 30875, 32500, 37525, 39026, 39500, 47500, 49375, 51350, 61750, 75050, 78052, 97565, 98750, 102700, 123500, 128375, 150100, 154375, 187625, 195130, 197500, 256750, 308750, 375250, 390260, 487825, 513500, 617500, 641875, 750500, 938125, 975650, 1283750, 1876250, 1951300, 2439125, 2567500, 3752500, 4878250, 9756500, 12195625, 24391250, 48782500]

約数ペア:

[(1, 48782500), (2, 24391250), (4, 12195625), (5, 9756500), (10, 4878250), (13, 3752500), (19, 2567500), (20, 2439125), (25, 1951300), (26, 1876250), (38, 1283750), (50, 975650), (52, 938125), (65, 750500), (76, 641875), (79, 617500), (95, 513500), (100, 487825), (125, 390260), (130, 375250), (158, 308750), (190, 256750), (247, 197500), (250, 195130), (260, 187625), (316, 154375), (325, 150100), (380, 128375), (395, 123500), (475, 102700), (494, 98750), (500, 97565), (625, 78052), (650, 75050), (790, 61750), (950, 51350), (988, 49375), (1027, 47500), (1235, 39500), (1250, 39026), (1300, 37525), (1501, 32500), (1580, 30875), (1625, 30020), (1900, 25675), (1975, 24700), (2054, 23750), (2375, 20540), (2470, 19750), (2500, 19513), (3002, 16250), (3250, 15010), (3950, 12350), (4108, 11875), (4750, 10270), (4940, 9875), (5135, 9500), (6004, 8125), (6175, 7900), (6500, 7505)]