1320779984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{563}}^1\times {\mathrm{7717}}^1$

素因数の和:8307

約数の個数: 40

約数和(自身を含む): 2698830240

約数和(自身を除く): 1378050256

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 563, 1126, 2252, 4504, 7717, 9008, 10697, 15434, 21394, 30868, 42788, 61736, 85576, 123472, 146623, 171152, 293246, 586492, 1172984, 2345968, 4344671, 8689342, 17378684, 34757368, 69514736, 82548749, 165097498, 330194996, 660389992, 1320779984]

約数ペア:

[(1, 1320779984), (2, 660389992), (4, 330194996), (8, 165097498), (16, 82548749), (19, 69514736), (38, 34757368), (76, 17378684), (152, 8689342), (304, 4344671), (563, 2345968), (1126, 1172984), (2252, 586492), (4504, 293246), (7717, 171152), (9008, 146623), (10697, 123472), (15434, 85576), (21394, 61736), (30868, 42788)]