87721900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1109}}^1$

素因数の和:1243

約数の個数: 72

約数和(自身を含む): 219673440

約数和(自身を除く): 131951540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 113, 140, 175, 226, 350, 452, 565, 700, 791, 1109, 1130, 1582, 2218, 2260, 2825, 3164, 3955, 4436, 5545, 5650, 7763, 7910, 11090, 11300, 15526, 15820, 19775, 22180, 27725, 31052, 38815, 39550, 55450, 77630, 79100, 110900, 125317, 155260, 194075, 250634, 388150, 501268, 626585, 776300, 877219, 1253170, 1754438, 2506340, 3132925, 3508876, 4386095, 6265850, 8772190, 12531700, 17544380, 21930475, 43860950, 87721900]

約数ペア:

[(1, 87721900), (2, 43860950), (4, 21930475), (5, 17544380), (7, 12531700), (10, 8772190), (14, 6265850), (20, 4386095), (25, 3508876), (28, 3132925), (35, 2506340), (50, 1754438), (70, 1253170), (100, 877219), (113, 776300), (140, 626585), (175, 501268), (226, 388150), (350, 250634), (452, 194075), (565, 155260), (700, 125317), (791, 110900), (1109, 79100), (1130, 77630), (1582, 55450), (2218, 39550), (2260, 38815), (2825, 31052), (3164, 27725), (3955, 22180), (4436, 19775), (5545, 15820), (5650, 15526), (7763, 11300), (7910, 11090)]