648751616

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:749

約数の個数: 80

約数和(自身を含む): 1370001600

約数和(自身を除く): 721249984

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 89, 92, 128, 178, 184, 256, 356, 368, 512, 619, 712, 736, 1238, 1424, 1472, 2047, 2476, 2848, 2944, 4094, 4952, 5696, 5888, 8188, 9904, 11392, 11776, 14237, 16376, 19808, 22784, 28474, 32752, 39616, 45568, 55091, 56948, 65504, 79232, 110182, 113896, 131008, 158464, 220364, 227792, 262016, 316928, 440728, 455584, 524032, 881456, 911168, 1048064, 1267093, 1762912, 1822336, 2534186, 3525824, 3644672, 5068372, 7051648, 7289344, 10136744, 14103296, 20273488, 28206592, 40546976, 81093952, 162187904, 324375808, 648751616]

約数ペア:

[(1, 648751616), (2, 324375808), (4, 162187904), (8, 81093952), (16, 40546976), (23, 28206592), (32, 20273488), (46, 14103296), (64, 10136744), (89, 7289344), (92, 7051648), (128, 5068372), (178, 3644672), (184, 3525824), (256, 2534186), (356, 1822336), (368, 1762912), (512, 1267093), (619, 1048064), (712, 911168), (736, 881456), (1238, 524032), (1424, 455584), (1472, 440728), (2047, 316928), (2476, 262016), (2848, 227792), (2944, 220364), (4094, 158464), (4952, 131008), (5696, 113896), (5888, 110182), (8188, 79232), (9904, 65504), (11392, 56948), (11776, 55091), (14237, 45568), (16376, 39616), (19808, 32752), (22784, 28474)]