331828480

素因数分解:

$2^8\times 5^1\times {\mathrm{397}}^1\times {\mathrm{653}}^1$

素因数の和:1071

約数の個数: 72

約数和(自身を含む): 798055272

約数和(自身を除く): 466226792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 397, 640, 653, 794, 1280, 1306, 1588, 1985, 2612, 3176, 3265, 3970, 5224, 6352, 6530, 7940, 10448, 12704, 13060, 15880, 20896, 25408, 26120, 31760, 41792, 50816, 52240, 63520, 83584, 101632, 104480, 127040, 167168, 208960, 254080, 259241, 417920, 508160, 518482, 835840, 1036964, 1296205, 2073928, 2592410, 4147856, 5184820, 8295712, 10369640, 16591424, 20739280, 33182848, 41478560, 66365696, 82957120, 165914240, 331828480]

約数ペア:

[(1, 331828480), (2, 165914240), (4, 82957120), (5, 66365696), (8, 41478560), (10, 33182848), (16, 20739280), (20, 16591424), (32, 10369640), (40, 8295712), (64, 5184820), (80, 4147856), (128, 2592410), (160, 2073928), (256, 1296205), (320, 1036964), (397, 835840), (640, 518482), (653, 508160), (794, 417920), (1280, 259241), (1306, 254080), (1588, 208960), (1985, 167168), (2612, 127040), (3176, 104480), (3265, 101632), (3970, 83584), (5224, 63520), (6352, 52240), (6530, 50816), (7940, 41792), (10448, 31760), (12704, 26120), (13060, 25408), (15880, 20896)]