19204540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 42674688

約数和(自身を除く): 23470148

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 83, 92, 115, 166, 230, 332, 415, 460, 503, 830, 1006, 1660, 1909, 2012, 2515, 3818, 5030, 7636, 9545, 10060, 11569, 19090, 23138, 38180, 41749, 46276, 57845, 83498, 115690, 166996, 208745, 231380, 417490, 834980, 960227, 1920454, 3840908, 4801135, 9602270, 19204540]

約数ペア:

[(1, 19204540), (2, 9602270), (4, 4801135), (5, 3840908), (10, 1920454), (20, 960227), (23, 834980), (46, 417490), (83, 231380), (92, 208745), (115, 166996), (166, 115690), (230, 83498), (332, 57845), (415, 46276), (460, 41749), (503, 38180), (830, 23138), (1006, 19090), (1660, 11569), (1909, 10060), (2012, 9545), (2515, 7636), (3818, 5030)]