28732340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15787}}^1$

素因数の和:15816

約数の個数: 48

約数和(自身を含む): 74266752

約数和(自身を除く): 45534412

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15787, 31574, 63148, 78935, 110509, 157870, 205231, 221018, 315740, 410462, 442036, 552545, 820924, 1026155, 1105090, 1436617, 2052310, 2210180, 2873234, 4104620, 5746468, 7183085, 14366170, 28732340]

約数ペア:

[(1, 28732340), (2, 14366170), (4, 7183085), (5, 5746468), (7, 4104620), (10, 2873234), (13, 2210180), (14, 2052310), (20, 1436617), (26, 1105090), (28, 1026155), (35, 820924), (52, 552545), (65, 442036), (70, 410462), (91, 315740), (130, 221018), (140, 205231), (182, 157870), (260, 110509), (364, 78935), (455, 63148), (910, 31574), (1820, 15787)]