19936930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 48

約数和(自身を含む): 39844224

約数和(自身を除く): 19907294

約数列:

[1, 2, 5, 10, 13, 26, 47, 65, 94, 130, 169, 235, 251, 338, 470, 502, 611, 845, 1222, 1255, 1690, 2510, 3055, 3263, 6110, 6526, 7943, 11797, 15886, 16315, 23594, 32630, 39715, 42419, 58985, 79430, 84838, 117970, 153361, 212095, 306722, 424190, 766805, 1533610, 1993693, 3987386, 9968465, 19936930]

約数ペア:

[(1, 19936930), (2, 9968465), (5, 3987386), (10, 1993693), (13, 1533610), (26, 766805), (47, 424190), (65, 306722), (94, 212095), (130, 153361), (169, 117970), (235, 84838), (251, 79430), (338, 58985), (470, 42419), (502, 39715), (611, 32630), (845, 23594), (1222, 16315), (1255, 15886), (1690, 11797), (2510, 7943), (3055, 6526), (3263, 6110)]