61871320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31567}}^1$

素因数の和:31592

約数の個数: 48

約数和(自身を含む): 161943840

約数和(自身を除く): 100072520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 31567, 63134, 126268, 157835, 220969, 252536, 315670, 441938, 631340, 883876, 1104845, 1262680, 1546783, 1767752, 2209690, 3093566, 4419380, 6187132, 7733915, 8838760, 12374264, 15467830, 30935660, 61871320]

約数ペア:

[(1, 61871320), (2, 30935660), (4, 15467830), (5, 12374264), (7, 8838760), (8, 7733915), (10, 6187132), (14, 4419380), (20, 3093566), (28, 2209690), (35, 1767752), (40, 1546783), (49, 1262680), (56, 1104845), (70, 883876), (98, 631340), (140, 441938), (196, 315670), (245, 252536), (280, 220969), (392, 157835), (490, 126268), (980, 63134), (1960, 31567)]