28096915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 18351725

約数列:

[1, 5, 7, 11, 19, 23, 35, 55, 77, 95, 115, 133, 161, 167, 209, 253, 385, 437, 665, 805, 835, 1045, 1169, 1265, 1463, 1771, 1837, 2185, 3059, 3173, 3841, 4807, 5845, 7315, 8855, 9185, 12859, 15295, 15865, 19205, 22211, 24035, 26887, 33649, 34903, 42251, 64295, 72979, 111055, 134435, 168245, 174515, 211255, 244321, 295757, 364895, 510853, 802769, 1221605, 1478785, 2554265, 4013845, 5619383, 28096915]

約数ペア:

[(1, 28096915), (5, 5619383), (7, 4013845), (11, 2554265), (19, 1478785), (23, 1221605), (35, 802769), (55, 510853), (77, 364895), (95, 295757), (115, 244321), (133, 211255), (161, 174515), (167, 168245), (209, 134435), (253, 111055), (385, 72979), (437, 64295), (665, 42251), (805, 34903), (835, 33649), (1045, 26887), (1169, 24035), (1265, 22211), (1463, 19205), (1771, 15865), (1837, 15295), (2185, 12859), (3059, 9185), (3173, 8855), (3841, 7315), (4807, 5845)]