51591440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:408

約数の個数: 80

約数和(自身を含む): 125991936

約数和(自身を除く): 74400496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 71, 80, 124, 142, 155, 248, 284, 293, 310, 355, 496, 568, 586, 620, 710, 1136, 1172, 1240, 1420, 1465, 2201, 2344, 2480, 2840, 2930, 4402, 4688, 5680, 5860, 8804, 9083, 11005, 11720, 17608, 18166, 20803, 22010, 23440, 35216, 36332, 41606, 44020, 45415, 72664, 83212, 88040, 90830, 104015, 145328, 166424, 176080, 181660, 208030, 332848, 363320, 416060, 644893, 726640, 832120, 1289786, 1664240, 2579572, 3224465, 5159144, 6448930, 10318288, 12897860, 25795720, 51591440]

約数ペア:

[(1, 51591440), (2, 25795720), (4, 12897860), (5, 10318288), (8, 6448930), (10, 5159144), (16, 3224465), (20, 2579572), (31, 1664240), (40, 1289786), (62, 832120), (71, 726640), (80, 644893), (124, 416060), (142, 363320), (155, 332848), (248, 208030), (284, 181660), (293, 176080), (310, 166424), (355, 145328), (496, 104015), (568, 90830), (586, 88040), (620, 83212), (710, 72664), (1136, 45415), (1172, 44020), (1240, 41606), (1420, 36332), (1465, 35216), (2201, 23440), (2344, 22010), (2480, 20803), (2840, 18166), (2930, 17608), (4402, 11720), (4688, 11005), (5680, 9083), (5860, 8804)]