9905964.00000000

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9923}}^1$

素因数の和:9951

約数の個数: 48

約数和(自身を含む): 52517808

約数和(自身を除く): 31877968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9923, 19846, 39692, 49615, 79384, 99230, 128999, 158768, 198460, 257998, 317536, 396920, 515996, 644995, 793840, 1031992, 1289990, 1587680, 2063984, 2579980, 4127968, 5159960, 10319920, 20639840]

約数ペア:

[(1, 20639840), (2, 10319920), (4, 5159960), (5, 4127968), (8, 2579980), (10, 2063984), (13, 1587680), (16, 1289990), (20, 1031992), (26, 793840), (32, 644995), (40, 515996), (52, 396920), (65, 317536), (80, 257998), (104, 198460), (130, 158768), (160, 128999), (208, 99230), (260, 79384), (416, 49615), (520, 39692), (1040, 19846), (2080, 9923)]