428480

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:133

約数の個数: 56

約数和(自身を含む): 1109472

約数和(自身を除く): 680992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 103, 104, 130, 160, 206, 208, 260, 320, 412, 416, 515, 520, 824, 832, 1030, 1040, 1339, 1648, 2060, 2080, 2678, 3296, 4120, 4160, 5356, 6592, 6695, 8240, 10712, 13390, 16480, 21424, 26780, 32960, 42848, 53560, 85696, 107120, 214240, 428480]

約数ペア:

[(1, 428480), (2, 214240), (4, 107120), (5, 85696), (8, 53560), (10, 42848), (13, 32960), (16, 26780), (20, 21424), (26, 16480), (32, 13390), (40, 10712), (52, 8240), (64, 6695), (65, 6592), (80, 5356), (103, 4160), (104, 4120), (130, 3296), (160, 2678), (206, 2080), (208, 2060), (260, 1648), (320, 1339), (412, 1040), (416, 1030), (515, 832), (520, 824)]