163998640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2318

約数の個数: 80

約数和(自身を含む): 416598336

約数和(自身を除く): 252599696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 71, 80, 104, 130, 142, 208, 260, 284, 355, 520, 568, 710, 923, 1040, 1136, 1420, 1846, 2221, 2840, 3692, 4442, 4615, 5680, 7384, 8884, 9230, 11105, 14768, 17768, 18460, 22210, 28873, 35536, 36920, 44420, 57746, 73840, 88840, 115492, 144365, 157691, 177680, 230984, 288730, 315382, 461968, 577460, 630764, 788455, 1154920, 1261528, 1576910, 2049983, 2309840, 2523056, 3153820, 4099966, 6307640, 8199932, 10249915, 12615280, 16399864, 20499830, 32799728, 40999660, 81999320, 163998640]

約数ペア:

[(1, 163998640), (2, 81999320), (4, 40999660), (5, 32799728), (8, 20499830), (10, 16399864), (13, 12615280), (16, 10249915), (20, 8199932), (26, 6307640), (40, 4099966), (52, 3153820), (65, 2523056), (71, 2309840), (80, 2049983), (104, 1576910), (130, 1261528), (142, 1154920), (208, 788455), (260, 630764), (284, 577460), (355, 461968), (520, 315382), (568, 288730), (710, 230984), (923, 177680), (1040, 157691), (1136, 144365), (1420, 115492), (1846, 88840), (2221, 73840), (2840, 57746), (3692, 44420), (4442, 36920), (4615, 35536), (5680, 28873), (7384, 22210), (8884, 18460), (9230, 17768), (11105, 14768)]