387692500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 120

約数和(自身を含む): 930702080

約数和(自身を除く): 543009580

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 79, 100, 125, 130, 151, 158, 250, 260, 302, 316, 325, 395, 500, 604, 625, 650, 755, 790, 1027, 1250, 1300, 1510, 1580, 1625, 1963, 1975, 2054, 2500, 3020, 3250, 3775, 3926, 3950, 4108, 5135, 6500, 7550, 7852, 7900, 8125, 9815, 9875, 10270, 11929, 15100, 16250, 18875, 19630, 19750, 20540, 23858, 25675, 32500, 37750, 39260, 39500, 47716, 49075, 49375, 51350, 59645, 75500, 94375, 98150, 98750, 102700, 119290, 128375, 155077, 188750, 196300, 197500, 238580, 245375, 256750, 298225, 310154, 377500, 490750, 513500, 596450, 620308, 641875, 775385, 981500, 1192900, 1226875, 1283750, 1491125, 1550770, 2453750, 2567500, 2982250, 3101540, 3876925, 4907500, 5964500, 7455625, 7753850, 14911250, 15507700, 19384625, 29822500, 38769250, 77538500, 96923125, 193846250, 387692500]

約数ペア:

[(1, 387692500), (2, 193846250), (4, 96923125), (5, 77538500), (10, 38769250), (13, 29822500), (20, 19384625), (25, 15507700), (26, 14911250), (50, 7753850), (52, 7455625), (65, 5964500), (79, 4907500), (100, 3876925), (125, 3101540), (130, 2982250), (151, 2567500), (158, 2453750), (250, 1550770), (260, 1491125), (302, 1283750), (316, 1226875), (325, 1192900), (395, 981500), (500, 775385), (604, 641875), (625, 620308), (650, 596450), (755, 513500), (790, 490750), (1027, 377500), (1250, 310154), (1300, 298225), (1510, 256750), (1580, 245375), (1625, 238580), (1963, 197500), (1975, 196300), (2054, 188750), (2500, 155077), (3020, 128375), (3250, 119290), (3775, 102700), (3926, 98750), (3950, 98150), (4108, 94375), (5135, 75500), (6500, 59645), (7550, 51350), (7852, 49375), (7900, 49075), (8125, 47716), (9815, 39500), (9875, 39260), (10270, 37750), (11929, 32500), (15100, 25675), (16250, 23858), (18875, 20540), (19630, 19750)]