31540880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{373}}^1$

素因数の和:544

約数の個数: 80

約数和(自身を含む): 84589824

約数和(自身を除く): 53048944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 151, 280, 302, 373, 560, 604, 746, 755, 1057, 1208, 1492, 1510, 1865, 2114, 2416, 2611, 2984, 3020, 3730, 4228, 5222, 5285, 5968, 6040, 7460, 8456, 10444, 10570, 12080, 13055, 14920, 16912, 20888, 21140, 26110, 29840, 41776, 42280, 52220, 56323, 84560, 104440, 112646, 208880, 225292, 281615, 394261, 450584, 563230, 788522, 901168, 1126460, 1577044, 1971305, 2252920, 3154088, 3942610, 4505840, 6308176, 7885220, 15770440, 31540880]

約数ペア:

[(1, 31540880), (2, 15770440), (4, 7885220), (5, 6308176), (7, 4505840), (8, 3942610), (10, 3154088), (14, 2252920), (16, 1971305), (20, 1577044), (28, 1126460), (35, 901168), (40, 788522), (56, 563230), (70, 450584), (80, 394261), (112, 281615), (140, 225292), (151, 208880), (280, 112646), (302, 104440), (373, 84560), (560, 56323), (604, 52220), (746, 42280), (755, 41776), (1057, 29840), (1208, 26110), (1492, 21140), (1510, 20888), (1865, 16912), (2114, 14920), (2416, 13055), (2611, 12080), (2984, 10570), (3020, 10444), (3730, 8456), (4228, 7460), (5222, 6040), (5285, 5968)]