164660480

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:871

約数の個数: 72

約数和(自身を含む): 397022472

約数和(自身を除く): 232361992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 640, 653, 788, 985, 1280, 1306, 1576, 1970, 2612, 3152, 3265, 3940, 5224, 6304, 6530, 7880, 10448, 12608, 13060, 15760, 20896, 25216, 26120, 31520, 41792, 50432, 52240, 63040, 83584, 104480, 126080, 128641, 167168, 208960, 252160, 257282, 417920, 514564, 643205, 835840, 1029128, 1286410, 2058256, 2572820, 4116512, 5145640, 8233024, 10291280, 16466048, 20582560, 32932096, 41165120, 82330240, 164660480]

約数ペア:

[(1, 164660480), (2, 82330240), (4, 41165120), (5, 32932096), (8, 20582560), (10, 16466048), (16, 10291280), (20, 8233024), (32, 5145640), (40, 4116512), (64, 2572820), (80, 2058256), (128, 1286410), (160, 1029128), (197, 835840), (256, 643205), (320, 514564), (394, 417920), (640, 257282), (653, 252160), (788, 208960), (985, 167168), (1280, 128641), (1306, 126080), (1576, 104480), (1970, 83584), (2612, 63040), (3152, 52240), (3265, 50432), (3940, 41792), (5224, 31520), (6304, 26120), (6530, 25216), (7880, 20896), (10448, 15760), (12608, 13060)]