28080500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 71705088

約数和(自身を除く): 43624588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 71, 100, 113, 125, 140, 142, 175, 226, 250, 284, 350, 355, 452, 497, 500, 565, 700, 710, 791, 875, 994, 1130, 1420, 1582, 1750, 1775, 1988, 2260, 2485, 2825, 3164, 3500, 3550, 3955, 4970, 5650, 7100, 7910, 8023, 8875, 9940, 11300, 12425, 14125, 15820, 16046, 17750, 19775, 24850, 28250, 32092, 35500, 39550, 40115, 49700, 56161, 56500, 62125, 79100, 80230, 98875, 112322, 124250, 160460, 197750, 200575, 224644, 248500, 280805, 395500, 401150, 561610, 802300, 1002875, 1123220, 1404025, 2005750, 2808050, 4011500, 5616100, 7020125, 14040250, 28080500]

約数ペア:

[(1, 28080500), (2, 14040250), (4, 7020125), (5, 5616100), (7, 4011500), (10, 2808050), (14, 2005750), (20, 1404025), (25, 1123220), (28, 1002875), (35, 802300), (50, 561610), (70, 401150), (71, 395500), (100, 280805), (113, 248500), (125, 224644), (140, 200575), (142, 197750), (175, 160460), (226, 124250), (250, 112322), (284, 98875), (350, 80230), (355, 79100), (452, 62125), (497, 56500), (500, 56161), (565, 49700), (700, 40115), (710, 39550), (791, 35500), (875, 32092), (994, 28250), (1130, 24850), (1420, 19775), (1582, 17750), (1750, 16046), (1775, 15820), (1988, 14125), (2260, 12425), (2485, 11300), (2825, 9940), (3164, 8875), (3500, 8023), (3550, 7910), (3955, 7100), (4970, 5650)]