161925720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2011}}^1$

素因数の和:2097

約数の個数: 128

約数和(自身を含む): 538894080

約数和(自身を除く): 376968360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 61, 66, 88, 110, 120, 122, 132, 165, 183, 220, 244, 264, 305, 330, 366, 440, 488, 610, 660, 671, 732, 915, 1220, 1320, 1342, 1464, 1830, 2011, 2013, 2440, 2684, 3355, 3660, 4022, 4026, 5368, 6033, 6710, 7320, 8044, 8052, 10055, 10065, 12066, 13420, 16088, 16104, 20110, 20130, 22121, 24132, 26840, 30165, 40220, 40260, 44242, 48264, 60330, 66363, 80440, 80520, 88484, 110605, 120660, 122671, 132726, 176968, 221210, 241320, 245342, 265452, 331815, 368013, 442420, 490684, 530904, 613355, 663630, 736026, 884840, 981368, 1226710, 1327260, 1349381, 1472052, 1840065, 2453420, 2654520, 2698762, 2944104, 3680130, 4048143, 4906840, 5397524, 6746905, 7360260, 8096286, 10795048, 13493810, 14720520, 16192572, 20240715, 26987620, 32385144, 40481430, 53975240, 80962860, 161925720]

約数ペア:

[(1, 161925720), (2, 80962860), (3, 53975240), (4, 40481430), (5, 32385144), (6, 26987620), (8, 20240715), (10, 16192572), (11, 14720520), (12, 13493810), (15, 10795048), (20, 8096286), (22, 7360260), (24, 6746905), (30, 5397524), (33, 4906840), (40, 4048143), (44, 3680130), (55, 2944104), (60, 2698762), (61, 2654520), (66, 2453420), (88, 1840065), (110, 1472052), (120, 1349381), (122, 1327260), (132, 1226710), (165, 981368), (183, 884840), (220, 736026), (244, 663630), (264, 613355), (305, 530904), (330, 490684), (366, 442420), (440, 368013), (488, 331815), (610, 265452), (660, 245342), (671, 241320), (732, 221210), (915, 176968), (1220, 132726), (1320, 122671), (1342, 120660), (1464, 110605), (1830, 88484), (2011, 80520), (2013, 80440), (2440, 66363), (2684, 60330), (3355, 48264), (3660, 44242), (4022, 40260), (4026, 40220), (5368, 30165), (6033, 26840), (6710, 24132), (7320, 22121), (8044, 20130), (8052, 20110), (10055, 16104), (10065, 16088), (12066, 13420)]