28078236485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{31607}}^1$

素因数の和:31877

約数の個数: 32

約数和(自身を含む): 36958602240

約数和(自身を除く): 8880365755

約数列:

[1, 5, 13, 65, 79, 173, 395, 865, 1027, 2249, 5135, 11245, 13667, 31607, 68335, 158035, 177671, 410891, 888355, 2054455, 2496953, 5468011, 12484765, 27340055, 32460389, 71084143, 162301945, 355420715, 431972869, 2159864345, 5615647297, 28078236485]

約数ペア:

[(1, 28078236485), (5, 5615647297), (13, 2159864345), (65, 431972869), (79, 355420715), (173, 162301945), (395, 71084143), (865, 32460389), (1027, 27340055), (2249, 12484765), (5135, 5468011), (11245, 2496953), (13667, 2054455), (31607, 888355), (68335, 410891), (158035, 177671)]