29921840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{28771}}^1$

素因数の和:28797

約数の個数: 40

約数和(自身を含む): 74922288

約数和(自身を除く): 45000448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 28771, 57542, 115084, 143855, 230168, 287710, 374023, 460336, 575420, 748046, 1150840, 1496092, 1870115, 2301680, 2992184, 3740230, 5984368, 7480460, 14960920, 29921840]

約数ペア:

[(1, 29921840), (2, 14960920), (4, 7480460), (5, 5984368), (8, 3740230), (10, 2992184), (13, 2301680), (16, 1870115), (20, 1496092), (26, 1150840), (40, 748046), (52, 575420), (65, 460336), (80, 374023), (104, 287710), (130, 230168), (208, 143855), (260, 115084), (520, 57542), (1040, 28771)]