31318100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 75370176

約数和(自身を除く): 44052076

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 71, 100, 110, 142, 220, 275, 284, 355, 401, 550, 710, 781, 802, 1100, 1420, 1562, 1604, 1775, 2005, 3124, 3550, 3905, 4010, 4411, 7100, 7810, 8020, 8822, 10025, 15620, 17644, 19525, 20050, 22055, 28471, 39050, 40100, 44110, 56942, 78100, 88220, 110275, 113884, 142355, 220550, 284710, 313181, 441100, 569420, 626362, 711775, 1252724, 1423550, 1565905, 2847100, 3131810, 6263620, 7829525, 15659050, 31318100]

約数ペア:

[(1, 31318100), (2, 15659050), (4, 7829525), (5, 6263620), (10, 3131810), (11, 2847100), (20, 1565905), (22, 1423550), (25, 1252724), (44, 711775), (50, 626362), (55, 569420), (71, 441100), (100, 313181), (110, 284710), (142, 220550), (220, 142355), (275, 113884), (284, 110275), (355, 88220), (401, 78100), (550, 56942), (710, 44110), (781, 40100), (802, 39050), (1100, 28471), (1420, 22055), (1562, 20050), (1604, 19525), (1775, 17644), (2005, 15620), (3124, 10025), (3550, 8822), (3905, 8020), (4010, 7810), (4411, 7100)]