19754240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:116

約数の個数: 144

約数和(自身を含む): 54746496

約数和(自身を除く): 34992256

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 32, 40, 44, 46, 55, 61, 64, 80, 88, 92, 110, 115, 122, 128, 160, 176, 184, 220, 230, 244, 253, 256, 305, 320, 352, 368, 440, 460, 488, 506, 610, 640, 671, 704, 736, 880, 920, 976, 1012, 1220, 1265, 1280, 1342, 1403, 1408, 1472, 1760, 1840, 1952, 2024, 2440, 2530, 2684, 2806, 2816, 2944, 3355, 3520, 3680, 3904, 4048, 4880, 5060, 5368, 5612, 5888, 6710, 7015, 7040, 7360, 7808, 8096, 9760, 10120, 10736, 11224, 13420, 14030, 14080, 14720, 15433, 15616, 16192, 19520, 20240, 21472, 22448, 26840, 28060, 29440, 30866, 32384, 39040, 40480, 42944, 44896, 53680, 56120, 61732, 64768, 77165, 78080, 80960, 85888, 89792, 107360, 112240, 123464, 154330, 161920, 171776, 179584, 214720, 224480, 246928, 308660, 323840, 359168, 429440, 448960, 493856, 617320, 858880, 897920, 987712, 1234640, 1795840, 1975424, 2469280, 3950848, 4938560, 9877120, 19754240]

約数ペア:

[(1, 19754240), (2, 9877120), (4, 4938560), (5, 3950848), (8, 2469280), (10, 1975424), (11, 1795840), (16, 1234640), (20, 987712), (22, 897920), (23, 858880), (32, 617320), (40, 493856), (44, 448960), (46, 429440), (55, 359168), (61, 323840), (64, 308660), (80, 246928), (88, 224480), (92, 214720), (110, 179584), (115, 171776), (122, 161920), (128, 154330), (160, 123464), (176, 112240), (184, 107360), (220, 89792), (230, 85888), (244, 80960), (253, 78080), (256, 77165), (305, 64768), (320, 61732), (352, 56120), (368, 53680), (440, 44896), (460, 42944), (488, 40480), (506, 39040), (610, 32384), (640, 30866), (671, 29440), (704, 28060), (736, 26840), (880, 22448), (920, 21472), (976, 20240), (1012, 19520), (1220, 16192), (1265, 15616), (1280, 15433), (1342, 14720), (1403, 14080), (1408, 14030), (1472, 13420), (1760, 11224), (1840, 10736), (1952, 10120), (2024, 9760), (2440, 8096), (2530, 7808), (2684, 7360), (2806, 7040), (2816, 7015), (2944, 6710), (3355, 5888), (3520, 5612), (3680, 5368), (3904, 5060), (4048, 4880)]