81745140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:733

約数の個数: 96

約数和(自身を含む): 239984640

約数和(自身を除く): 158239500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 71, 93, 124, 142, 155, 186, 213, 284, 310, 355, 372, 426, 465, 619, 620, 710, 852, 930, 1065, 1238, 1420, 1857, 1860, 2130, 2201, 2476, 3095, 3714, 4260, 4402, 6190, 6603, 7428, 8804, 9285, 11005, 12380, 13206, 18570, 19189, 22010, 26412, 33015, 37140, 38378, 43949, 44020, 57567, 66030, 76756, 87898, 95945, 115134, 131847, 132060, 175796, 191890, 219745, 230268, 263694, 287835, 383780, 439490, 527388, 575670, 659235, 878980, 1151340, 1318470, 1362419, 2636940, 2724838, 4087257, 5449676, 6812095, 8174514, 13624190, 16349028, 20436285, 27248380, 40872570, 81745140]

約数ペア:

[(1, 81745140), (2, 40872570), (3, 27248380), (4, 20436285), (5, 16349028), (6, 13624190), (10, 8174514), (12, 6812095), (15, 5449676), (20, 4087257), (30, 2724838), (31, 2636940), (60, 1362419), (62, 1318470), (71, 1151340), (93, 878980), (124, 659235), (142, 575670), (155, 527388), (186, 439490), (213, 383780), (284, 287835), (310, 263694), (355, 230268), (372, 219745), (426, 191890), (465, 175796), (619, 132060), (620, 131847), (710, 115134), (852, 95945), (930, 87898), (1065, 76756), (1238, 66030), (1420, 57567), (1857, 44020), (1860, 43949), (2130, 38378), (2201, 37140), (2476, 33015), (3095, 26412), (3714, 22010), (4260, 19189), (4402, 18570), (6190, 13206), (6603, 12380), (7428, 11005), (8804, 9285)]