391657984

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:541

約数の個数: 80

約数和(自身を含む): 828875520

約数和(自身を除く): 437217536

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 79, 92, 128, 158, 184, 256, 316, 368, 421, 512, 632, 736, 842, 1264, 1472, 1684, 1817, 2528, 2944, 3368, 3634, 5056, 5888, 6736, 7268, 9683, 10112, 11776, 13472, 14536, 19366, 20224, 26944, 29072, 33259, 38732, 40448, 53888, 58144, 66518, 77464, 107776, 116288, 133036, 154928, 215552, 232576, 266072, 309856, 465152, 532144, 619712, 764957, 930304, 1064288, 1239424, 1529914, 2128576, 2478848, 3059828, 4257152, 4957696, 6119656, 8514304, 12239312, 17028608, 24478624, 48957248, 97914496, 195828992, 391657984]

約数ペア:

[(1, 391657984), (2, 195828992), (4, 97914496), (8, 48957248), (16, 24478624), (23, 17028608), (32, 12239312), (46, 8514304), (64, 6119656), (79, 4957696), (92, 4257152), (128, 3059828), (158, 2478848), (184, 2128576), (256, 1529914), (316, 1239424), (368, 1064288), (421, 930304), (512, 764957), (632, 619712), (736, 532144), (842, 465152), (1264, 309856), (1472, 266072), (1684, 232576), (1817, 215552), (2528, 154928), (2944, 133036), (3368, 116288), (3634, 107776), (5056, 77464), (5888, 66518), (6736, 58144), (7268, 53888), (9683, 40448), (10112, 38732), (11776, 33259), (13472, 29072), (14536, 26944), (19366, 20224)]