28127360

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:709

約数の個数: 64

約数和(自身を含む): 68299200

約数和(自身を除く): 40171840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 619, 640, 710, 1136, 1238, 1420, 2272, 2476, 2840, 3095, 4544, 4952, 5680, 6190, 9088, 9904, 11360, 12380, 19808, 22720, 24760, 39616, 43949, 45440, 49520, 79232, 87898, 99040, 175796, 198080, 219745, 351592, 396160, 439490, 703184, 878980, 1406368, 1757960, 2812736, 3515920, 5625472, 7031840, 14063680, 28127360]

約数ペア:

[(1, 28127360), (2, 14063680), (4, 7031840), (5, 5625472), (8, 3515920), (10, 2812736), (16, 1757960), (20, 1406368), (32, 878980), (40, 703184), (64, 439490), (71, 396160), (80, 351592), (128, 219745), (142, 198080), (160, 175796), (284, 99040), (320, 87898), (355, 79232), (568, 49520), (619, 45440), (640, 43949), (710, 39616), (1136, 24760), (1238, 22720), (1420, 19808), (2272, 12380), (2476, 11360), (2840, 9904), (3095, 9088), (4544, 6190), (4952, 5680)]