19910213440

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4786109}}^1$

素因数の和:4786139

約数の個数: 56

約数和(自身を含む): 51058221480

約数和(自身を除く): 31148008040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4786109, 9572218, 19144436, 23930545, 38288872, 47861090, 62219417, 76577744, 95722180, 124438834, 153155488, 191444360, 248877668, 306310976, 311097085, 382888720, 497755336, 622194170, 765777440, 995510672, 1244388340, 1531554880, 1991021344, 2488776680, 3982042688, 4977553360, 9955106720, 19910213440]

約数ペア:

[(1, 19910213440), (2, 9955106720), (4, 4977553360), (5, 3982042688), (8, 2488776680), (10, 1991021344), (13, 1531554880), (16, 1244388340), (20, 995510672), (26, 765777440), (32, 622194170), (40, 497755336), (52, 382888720), (64, 311097085), (65, 306310976), (80, 248877668), (104, 191444360), (130, 153155488), (160, 124438834), (208, 95722180), (260, 76577744), (320, 62219417), (416, 47861090), (520, 38288872), (832, 23930545), (1040, 19144436), (2080, 9572218), (4160, 4786109)]