128925320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{619}}^1$

素因数の和:798

約数の個数: 64

約数和(自身を含む): 299980800

約数和(自身を除く): 171055480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 127, 164, 205, 254, 328, 410, 508, 619, 635, 820, 1016, 1238, 1270, 1640, 2476, 2540, 3095, 4952, 5080, 5207, 6190, 10414, 12380, 20828, 24760, 25379, 26035, 41656, 50758, 52070, 78613, 101516, 104140, 126895, 157226, 203032, 208280, 253790, 314452, 393065, 507580, 628904, 786130, 1015160, 1572260, 3144520, 3223133, 6446266, 12892532, 16115665, 25785064, 32231330, 64462660, 128925320]

約数ペア:

[(1, 128925320), (2, 64462660), (4, 32231330), (5, 25785064), (8, 16115665), (10, 12892532), (20, 6446266), (40, 3223133), (41, 3144520), (82, 1572260), (127, 1015160), (164, 786130), (205, 628904), (254, 507580), (328, 393065), (410, 314452), (508, 253790), (619, 208280), (635, 203032), (820, 157226), (1016, 126895), (1238, 104140), (1270, 101516), (1640, 78613), (2476, 52070), (2540, 50758), (3095, 41656), (4952, 26035), (5080, 25379), (5207, 24760), (6190, 20828), (10414, 12380)]