248967465

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:442

約数の個数: 64

約数和(自身を含む): 441365760

約数和(自身を除く): 192398295

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 131, 145, 255, 257, 393, 435, 493, 655, 771, 1285, 1479, 1965, 2227, 2465, 3799, 3855, 4369, 6681, 7395, 7453, 11135, 11397, 13107, 18995, 21845, 22359, 33405, 33667, 37265, 56985, 64583, 65535, 101001, 111795, 126701, 168335, 193749, 322915, 380103, 505005, 572339, 633505, 968745, 976343, 1717017, 1900515, 2861695, 2929029, 4881715, 8585085, 14645145, 16597831, 49793493, 82989155, 248967465]

約数ペア:

[(1, 248967465), (3, 82989155), (5, 49793493), (15, 16597831), (17, 14645145), (29, 8585085), (51, 4881715), (85, 2929029), (87, 2861695), (131, 1900515), (145, 1717017), (255, 976343), (257, 968745), (393, 633505), (435, 572339), (493, 505005), (655, 380103), (771, 322915), (1285, 193749), (1479, 168335), (1965, 126701), (2227, 111795), (2465, 101001), (3799, 65535), (3855, 64583), (4369, 56985), (6681, 37265), (7395, 33667), (7453, 33405), (11135, 22359), (11397, 21845), (13107, 18995)]