181809160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:287

約数の個数: 128

約数和(自身を含む): 463034880

約数和(自身を除く): 281225720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 47, 52, 65, 86, 94, 104, 130, 172, 173, 188, 215, 235, 260, 344, 346, 376, 430, 470, 520, 559, 611, 692, 860, 865, 940, 1118, 1222, 1384, 1720, 1730, 1880, 2021, 2236, 2249, 2444, 2795, 3055, 3460, 4042, 4472, 4498, 4888, 5590, 6110, 6920, 7439, 8084, 8131, 8996, 10105, 11180, 11245, 12220, 14878, 16168, 16262, 17992, 20210, 22360, 22490, 24440, 26273, 29756, 32524, 37195, 40420, 40655, 44980, 52546, 59512, 65048, 74390, 80840, 81310, 89960, 96707, 105092, 105703, 131365, 148780, 162620, 193414, 210184, 211406, 262730, 297560, 325240, 349633, 386828, 422812, 483535, 525460, 528515, 699266, 773656, 845624, 967070, 1050920, 1057030, 1398532, 1748165, 1934140, 2114060, 2797064, 3496330, 3868280, 4228120, 4545229, 6992660, 9090458, 13985320, 18180916, 22726145, 36361832, 45452290, 90904580, 181809160]

約数ペア:

[(1, 181809160), (2, 90904580), (4, 45452290), (5, 36361832), (8, 22726145), (10, 18180916), (13, 13985320), (20, 9090458), (26, 6992660), (40, 4545229), (43, 4228120), (47, 3868280), (52, 3496330), (65, 2797064), (86, 2114060), (94, 1934140), (104, 1748165), (130, 1398532), (172, 1057030), (173, 1050920), (188, 967070), (215, 845624), (235, 773656), (260, 699266), (344, 528515), (346, 525460), (376, 483535), (430, 422812), (470, 386828), (520, 349633), (559, 325240), (611, 297560), (692, 262730), (860, 211406), (865, 210184), (940, 193414), (1118, 162620), (1222, 148780), (1384, 131365), (1720, 105703), (1730, 105092), (1880, 96707), (2021, 89960), (2236, 81310), (2249, 80840), (2444, 74390), (2795, 65048), (3055, 59512), (3460, 52546), (4042, 44980), (4472, 40655), (4498, 40420), (4888, 37195), (5590, 32524), (6110, 29756), (6920, 26273), (7439, 24440), (8084, 22490), (8131, 22360), (8996, 20210), (10105, 17992), (11180, 16262), (11245, 16168), (12220, 14878)]