31820985

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:395

約数の個数: 64

約数和(自身を含む): 65372160

約数和(自身を除く): 33551175

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 151, 189, 223, 315, 453, 669, 755, 945, 1057, 1115, 1359, 1561, 2007, 2265, 3171, 3345, 4077, 4683, 5285, 6021, 6795, 7805, 9513, 10035, 14049, 15855, 20385, 23415, 28539, 30105, 33673, 42147, 47565, 70245, 101019, 142695, 168365, 210735, 235711, 303057, 505095, 707133, 909171, 1178555, 1515285, 2121399, 3535665, 4545855, 6364197, 10606995, 31820985]

約数ペア:

[(1, 31820985), (3, 10606995), (5, 6364197), (7, 4545855), (9, 3535665), (15, 2121399), (21, 1515285), (27, 1178555), (35, 909171), (45, 707133), (63, 505095), (105, 303057), (135, 235711), (151, 210735), (189, 168365), (223, 142695), (315, 101019), (453, 70245), (669, 47565), (755, 42147), (945, 33673), (1057, 30105), (1115, 28539), (1359, 23415), (1561, 20385), (2007, 15855), (2265, 14049), (3171, 10035), (3345, 9513), (4077, 7805), (4683, 6795), (5285, 6021)]