19417520

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:270

約数の個数: 80

約数和(自身を含む): 48157632

約数和(自身を除く): 28740112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 61, 80, 92, 115, 122, 173, 184, 230, 244, 305, 346, 368, 460, 488, 610, 692, 865, 920, 976, 1220, 1384, 1403, 1730, 1840, 2440, 2768, 2806, 3460, 3979, 4880, 5612, 6920, 7015, 7958, 10553, 11224, 13840, 14030, 15916, 19895, 21106, 22448, 28060, 31832, 39790, 42212, 52765, 56120, 63664, 79580, 84424, 105530, 112240, 159160, 168848, 211060, 242719, 318320, 422120, 485438, 844240, 970876, 1213595, 1941752, 2427190, 3883504, 4854380, 9708760, 19417520]

約数ペア:

[(1, 19417520), (2, 9708760), (4, 4854380), (5, 3883504), (8, 2427190), (10, 1941752), (16, 1213595), (20, 970876), (23, 844240), (40, 485438), (46, 422120), (61, 318320), (80, 242719), (92, 211060), (115, 168848), (122, 159160), (173, 112240), (184, 105530), (230, 84424), (244, 79580), (305, 63664), (346, 56120), (368, 52765), (460, 42212), (488, 39790), (610, 31832), (692, 28060), (865, 22448), (920, 21106), (976, 19895), (1220, 15916), (1384, 14030), (1403, 13840), (1730, 11224), (1840, 10553), (2440, 7958), (2768, 7015), (2806, 6920), (3460, 5612), (3979, 4880)]