20751040

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3413}}^1$

素因数の和:3449

約数の個数: 56

約数和(自身を含む): 52029360

約数和(自身を除く): 31278320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 152, 160, 190, 304, 320, 380, 608, 760, 1216, 1520, 3040, 3413, 6080, 6826, 13652, 17065, 27304, 34130, 54608, 64847, 68260, 109216, 129694, 136520, 218432, 259388, 273040, 324235, 518776, 546080, 648470, 1037552, 1092160, 1296940, 2075104, 2593880, 4150208, 5187760, 10375520, 20751040]

約数ペア:

[(1, 20751040), (2, 10375520), (4, 5187760), (5, 4150208), (8, 2593880), (10, 2075104), (16, 1296940), (19, 1092160), (20, 1037552), (32, 648470), (38, 546080), (40, 518776), (64, 324235), (76, 273040), (80, 259388), (95, 218432), (152, 136520), (160, 129694), (190, 109216), (304, 68260), (320, 64847), (380, 54608), (608, 34130), (760, 27304), (1216, 17065), (1520, 13652), (3040, 6826), (3413, 6080)]