21456270500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{54251}}^1$

素因数の和:54390

約数の個数: 96

約数和(自身を含む): 54029783808

約数和(自身を除く): 32573513308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 113, 125, 140, 175, 226, 250, 350, 452, 500, 565, 700, 791, 875, 1130, 1582, 1750, 2260, 2825, 3164, 3500, 3955, 5650, 7910, 11300, 14125, 15820, 19775, 28250, 39550, 54251, 56500, 79100, 98875, 108502, 197750, 217004, 271255, 379757, 395500, 542510, 759514, 1085020, 1356275, 1519028, 1898785, 2712550, 3797570, 5425100, 6130363, 6781375, 7595140, 9493925, 12260726, 13562750, 18987850, 24521452, 27125500, 30651815, 37975700, 42912541, 47469625, 61303630, 85825082, 94939250, 122607260, 153259075, 171650164, 189878500, 214562705, 306518150, 429125410, 613036300, 766295375, 858250820, 1072813525, 1532590750, 2145627050, 3065181500, 4291254100, 5364067625, 10728135250, 21456270500]

約数ペア:

[(1, 21456270500), (2, 10728135250), (4, 5364067625), (5, 4291254100), (7, 3065181500), (10, 2145627050), (14, 1532590750), (20, 1072813525), (25, 858250820), (28, 766295375), (35, 613036300), (50, 429125410), (70, 306518150), (100, 214562705), (113, 189878500), (125, 171650164), (140, 153259075), (175, 122607260), (226, 94939250), (250, 85825082), (350, 61303630), (452, 47469625), (500, 42912541), (565, 37975700), (700, 30651815), (791, 27125500), (875, 24521452), (1130, 18987850), (1582, 13562750), (1750, 12260726), (2260, 9493925), (2825, 7595140), (3164, 6781375), (3500, 6130363), (3955, 5425100), (5650, 3797570), (7910, 2712550), (11300, 1898785), (14125, 1519028), (15820, 1356275), (19775, 1085020), (28250, 759514), (39550, 542510), (54251, 395500), (56500, 379757), (79100, 271255), (98875, 217004), (108502, 197750)]