1281021184

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1069}}^1$

素因数の和:1267

約数の個数: 72

約数和(自身を含む): 2659489280

約数和(自身を除く): 1378468096

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 151, 248, 256, 302, 496, 604, 992, 1069, 1208, 1984, 2138, 2416, 3968, 4276, 4681, 4832, 7936, 8552, 9362, 9664, 17104, 18724, 19328, 33139, 34208, 37448, 38656, 66278, 68416, 74896, 132556, 136832, 149792, 161419, 265112, 273664, 299584, 322838, 530224, 599168, 645676, 1060448, 1198336, 1291352, 2120896, 2582704, 4241792, 5003989, 5165408, 8483584, 10007978, 10330816, 20015956, 20661632, 40031912, 41323264, 80063824, 160127648, 320255296, 640510592, 1281021184]

約数ペア:

[(1, 1281021184), (2, 640510592), (4, 320255296), (8, 160127648), (16, 80063824), (31, 41323264), (32, 40031912), (62, 20661632), (64, 20015956), (124, 10330816), (128, 10007978), (151, 8483584), (248, 5165408), (256, 5003989), (302, 4241792), (496, 2582704), (604, 2120896), (992, 1291352), (1069, 1198336), (1208, 1060448), (1984, 645676), (2138, 599168), (2416, 530224), (3968, 322838), (4276, 299584), (4681, 273664), (4832, 265112), (7936, 161419), (8552, 149792), (9362, 136832), (9664, 132556), (17104, 74896), (18724, 68416), (19328, 66278), (33139, 38656), (34208, 37448)]