16663960

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 39916800

約数和(自身を除く): 23252840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 59, 92, 115, 118, 184, 230, 236, 295, 307, 460, 472, 590, 614, 920, 1180, 1228, 1357, 1535, 2360, 2456, 2714, 3070, 5428, 6140, 6785, 7061, 10856, 12280, 13570, 14122, 18113, 27140, 28244, 35305, 36226, 54280, 56488, 70610, 72452, 90565, 141220, 144904, 181130, 282440, 362260, 416599, 724520, 833198, 1666396, 2082995, 3332792, 4165990, 8331980, 16663960]

約数ペア:

[(1, 16663960), (2, 8331980), (4, 4165990), (5, 3332792), (8, 2082995), (10, 1666396), (20, 833198), (23, 724520), (40, 416599), (46, 362260), (59, 282440), (92, 181130), (115, 144904), (118, 141220), (184, 90565), (230, 72452), (236, 70610), (295, 56488), (307, 54280), (460, 36226), (472, 35305), (590, 28244), (614, 27140), (920, 18113), (1180, 14122), (1228, 13570), (1357, 12280), (1535, 10856), (2360, 7061), (2456, 6785), (2714, 6140), (3070, 5428)]