40782820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{691}}^1$

素因数の和:940

約数の個数: 48

約数和(自身を含む): 92772288

約数和(自身を除く): 51989468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 227, 260, 454, 691, 908, 1135, 1382, 2270, 2764, 2951, 3455, 4540, 5902, 6910, 8983, 11804, 13820, 14755, 17966, 29510, 35932, 44915, 59020, 89830, 156857, 179660, 313714, 627428, 784285, 1568570, 2039141, 3137140, 4078282, 8156564, 10195705, 20391410, 40782820]

約数ペア:

[(1, 40782820), (2, 20391410), (4, 10195705), (5, 8156564), (10, 4078282), (13, 3137140), (20, 2039141), (26, 1568570), (52, 784285), (65, 627428), (130, 313714), (227, 179660), (260, 156857), (454, 89830), (691, 59020), (908, 44915), (1135, 35932), (1382, 29510), (2270, 17966), (2764, 14755), (2951, 13820), (3455, 11804), (4540, 8983), (5902, 6910)]