31505745

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 56401920

約数和(自身を除く): 24896175

約数列:

[1, 3, 5, 15, 23, 29, 47, 67, 69, 87, 115, 141, 145, 201, 235, 335, 345, 435, 667, 705, 1005, 1081, 1363, 1541, 1943, 2001, 3149, 3243, 3335, 4089, 4623, 5405, 5829, 6815, 7705, 9447, 9715, 10005, 15745, 16215, 20445, 23115, 29145, 31349, 44689, 47235, 72427, 91321, 94047, 134067, 156745, 217281, 223445, 273963, 362135, 456605, 470235, 670335, 1086405, 1369815, 2100383, 6301149, 10501915, 31505745]

約数ペア:

[(1, 31505745), (3, 10501915), (5, 6301149), (15, 2100383), (23, 1369815), (29, 1086405), (47, 670335), (67, 470235), (69, 456605), (87, 362135), (115, 273963), (141, 223445), (145, 217281), (201, 156745), (235, 134067), (335, 94047), (345, 91321), (435, 72427), (667, 47235), (705, 44689), (1005, 31349), (1081, 29145), (1363, 23115), (1541, 20445), (1943, 16215), (2001, 15745), (3149, 10005), (3243, 9715), (3335, 9447), (4089, 7705), (4623, 6815), (5405, 5829)]