28517860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 73543680

約数和(自身を除く): 45025820

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 71, 76, 95, 133, 140, 142, 151, 190, 266, 284, 302, 355, 380, 497, 532, 604, 665, 710, 755, 994, 1057, 1330, 1349, 1420, 1510, 1988, 2114, 2485, 2660, 2698, 2869, 3020, 4228, 4970, 5285, 5396, 5738, 6745, 9443, 9940, 10570, 10721, 11476, 13490, 14345, 18886, 20083, 21140, 21442, 26980, 28690, 37772, 40166, 42884, 47215, 53605, 57380, 75047, 80332, 94430, 100415, 107210, 150094, 188860, 200830, 203699, 214420, 300188, 375235, 401660, 407398, 750470, 814796, 1018495, 1425893, 1500940, 2036990, 2851786, 4073980, 5703572, 7129465, 14258930, 28517860]

約数ペア:

[(1, 28517860), (2, 14258930), (4, 7129465), (5, 5703572), (7, 4073980), (10, 2851786), (14, 2036990), (19, 1500940), (20, 1425893), (28, 1018495), (35, 814796), (38, 750470), (70, 407398), (71, 401660), (76, 375235), (95, 300188), (133, 214420), (140, 203699), (142, 200830), (151, 188860), (190, 150094), (266, 107210), (284, 100415), (302, 94430), (355, 80332), (380, 75047), (497, 57380), (532, 53605), (604, 47215), (665, 42884), (710, 40166), (755, 37772), (994, 28690), (1057, 26980), (1330, 21442), (1349, 21140), (1420, 20083), (1510, 18886), (1988, 14345), (2114, 13490), (2485, 11476), (2660, 10721), (2698, 10570), (2869, 9940), (3020, 9443), (4228, 6745), (4970, 5738), (5285, 5396)]