31909540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 77220864

約数和(自身を除く): 45311324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 37, 52, 62, 65, 74, 107, 124, 130, 148, 155, 185, 214, 260, 310, 370, 403, 428, 481, 535, 620, 740, 806, 962, 1070, 1147, 1391, 1612, 1924, 2015, 2140, 2294, 2405, 2782, 3317, 3959, 4030, 4588, 4810, 5564, 5735, 6634, 6955, 7918, 8060, 9620, 11470, 13268, 13910, 14911, 15836, 16585, 19795, 22940, 27820, 29822, 33170, 39590, 43121, 51467, 59644, 66340, 74555, 79180, 86242, 102934, 122729, 149110, 172484, 205868, 215605, 245458, 257335, 298220, 431210, 490916, 514670, 613645, 862420, 1029340, 1227290, 1595477, 2454580, 3190954, 6381908, 7977385, 15954770, 31909540]

約数ペア:

[(1, 31909540), (2, 15954770), (4, 7977385), (5, 6381908), (10, 3190954), (13, 2454580), (20, 1595477), (26, 1227290), (31, 1029340), (37, 862420), (52, 613645), (62, 514670), (65, 490916), (74, 431210), (107, 298220), (124, 257335), (130, 245458), (148, 215605), (155, 205868), (185, 172484), (214, 149110), (260, 122729), (310, 102934), (370, 86242), (403, 79180), (428, 74555), (481, 66340), (535, 59644), (620, 51467), (740, 43121), (806, 39590), (962, 33170), (1070, 29822), (1147, 27820), (1391, 22940), (1612, 19795), (1924, 16585), (2015, 15836), (2140, 14911), (2294, 13910), (2405, 13268), (2782, 11470), (3317, 9620), (3959, 8060), (4030, 7918), (4588, 6955), (4810, 6634), (5564, 5735)]