21989800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 59371200

約数和(自身を除く): 37381400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 113, 139, 140, 175, 200, 226, 278, 280, 350, 452, 556, 565, 695, 700, 791, 904, 973, 1112, 1130, 1390, 1400, 1582, 1946, 2260, 2780, 2825, 3164, 3475, 3892, 3955, 4520, 4865, 5560, 5650, 6328, 6950, 7784, 7910, 9730, 11300, 13900, 15707, 15820, 19460, 19775, 22600, 24325, 27800, 31414, 31640, 38920, 39550, 48650, 62828, 78535, 79100, 97300, 109949, 125656, 157070, 158200, 194600, 219898, 314140, 392675, 439796, 549745, 628280, 785350, 879592, 1099490, 1570700, 2198980, 2748725, 3141400, 4397960, 5497450, 10994900, 21989800]

約数ペア:

[(1, 21989800), (2, 10994900), (4, 5497450), (5, 4397960), (7, 3141400), (8, 2748725), (10, 2198980), (14, 1570700), (20, 1099490), (25, 879592), (28, 785350), (35, 628280), (40, 549745), (50, 439796), (56, 392675), (70, 314140), (100, 219898), (113, 194600), (139, 158200), (140, 157070), (175, 125656), (200, 109949), (226, 97300), (278, 79100), (280, 78535), (350, 62828), (452, 48650), (556, 39550), (565, 38920), (695, 31640), (700, 31414), (791, 27800), (904, 24325), (973, 22600), (1112, 19775), (1130, 19460), (1390, 15820), (1400, 15707), (1582, 13900), (1946, 11300), (2260, 9730), (2780, 7910), (2825, 7784), (3164, 6950), (3475, 6328), (3892, 5650), (3955, 5560), (4520, 4865)]