16212140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 40334112

約数和(自身を除く): 24121972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 233, 245, 284, 355, 466, 490, 497, 710, 932, 980, 994, 1165, 1420, 1631, 1988, 2330, 2485, 3262, 3479, 4660, 4970, 6524, 6958, 8155, 9940, 11417, 13916, 16310, 16543, 17395, 22834, 32620, 33086, 34790, 45668, 57085, 66172, 69580, 82715, 114170, 115801, 165430, 228340, 231602, 330860, 463204, 579005, 810607, 1158010, 1621214, 2316020, 3242428, 4053035, 8106070, 16212140]

約数ペア:

[(1, 16212140), (2, 8106070), (4, 4053035), (5, 3242428), (7, 2316020), (10, 1621214), (14, 1158010), (20, 810607), (28, 579005), (35, 463204), (49, 330860), (70, 231602), (71, 228340), (98, 165430), (140, 115801), (142, 114170), (196, 82715), (233, 69580), (245, 66172), (284, 57085), (355, 45668), (466, 34790), (490, 33086), (497, 32620), (710, 22834), (932, 17395), (980, 16543), (994, 16310), (1165, 13916), (1420, 11417), (1631, 9940), (1988, 8155), (2330, 6958), (2485, 6524), (3262, 4970), (3479, 4660)]