15821640

素因数分解:

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

素因数の和:707

約数の個数: 96

約数和(自身を含む): 52228800

約数和(自身を除く): 36407160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 71, 72, 90, 120, 142, 180, 213, 284, 355, 360, 426, 568, 619, 639, 710, 852, 1065, 1238, 1278, 1420, 1704, 1857, 2130, 2476, 2556, 2840, 3095, 3195, 3714, 4260, 4952, 5112, 5571, 6190, 6390, 7428, 8520, 9285, 11142, 12380, 12780, 14856, 18570, 22284, 24760, 25560, 27855, 37140, 43949, 44568, 55710, 74280, 87898, 111420, 131847, 175796, 219745, 222840, 263694, 351592, 395541, 439490, 527388, 659235, 791082, 878980, 1054776, 1318470, 1582164, 1757960, 1977705, 2636940, 3164328, 3955410, 5273880, 7910820, 15821640]

約数ペア:

[(1, 15821640), (2, 7910820), (3, 5273880), (4, 3955410), (5, 3164328), (6, 2636940), (8, 1977705), (9, 1757960), (10, 1582164), (12, 1318470), (15, 1054776), (18, 878980), (20, 791082), (24, 659235), (30, 527388), (36, 439490), (40, 395541), (45, 351592), (60, 263694), (71, 222840), (72, 219745), (90, 175796), (120, 131847), (142, 111420), (180, 87898), (213, 74280), (284, 55710), (355, 44568), (360, 43949), (426, 37140), (568, 27855), (619, 25560), (639, 24760), (710, 22284), (852, 18570), (1065, 14856), (1238, 12780), (1278, 12380), (1420, 11142), (1704, 9285), (1857, 8520), (2130, 7428), (2476, 6390), (2556, 6190), (2840, 5571), (3095, 5112), (3195, 4952), (3714, 4260)]