18995795

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 9453997

約数列:

[1, 5, 7, 13, 35, 65, 83, 91, 415, 455, 503, 581, 1079, 2515, 2905, 3521, 5395, 6539, 7553, 17605, 32695, 37765, 41749, 45773, 208745, 228865, 292243, 542737, 1461215, 2713685, 3799159, 18995795]

約数ペア:

[(1, 18995795), (5, 3799159), (7, 2713685), (13, 1461215), (35, 542737), (65, 292243), (83, 228865), (91, 208745), (415, 45773), (455, 41749), (503, 37765), (581, 32695), (1079, 17605), (2515, 7553), (2905, 6539), (3521, 5395)]