28047015

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 22496985

約数列:

[1, 3, 5, 9, 15, 45, 47, 89, 141, 149, 235, 267, 423, 445, 447, 705, 745, 801, 1335, 1341, 2115, 2235, 4005, 4183, 6705, 7003, 12549, 13261, 20915, 21009, 35015, 37647, 39783, 62745, 63027, 66305, 105045, 119349, 188235, 198915, 315135, 596745, 623267, 1869801, 3116335, 5609403, 9349005, 28047015]

約数ペア:

[(1, 28047015), (3, 9349005), (5, 5609403), (9, 3116335), (15, 1869801), (45, 623267), (47, 596745), (89, 315135), (141, 198915), (149, 188235), (235, 119349), (267, 105045), (423, 66305), (445, 63027), (447, 62745), (705, 39783), (745, 37647), (801, 35015), (1335, 21009), (1341, 20915), (2115, 13261), (2235, 12549), (4005, 7003), (4183, 6705)]