15669852020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1\times {\mathrm{32353}}^1$

素因数の和:32820

約数の個数: 48

約数和(自身を含む): 33531426768

約数和(自身を除く): 17861574748

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 397, 610, 794, 1220, 1588, 1985, 3970, 7940, 24217, 32353, 48434, 64706, 96868, 121085, 129412, 161765, 242170, 323530, 484340, 647060, 1973533, 3947066, 7894132, 9867665, 12844141, 19735330, 25688282, 39470660, 51376564, 64220705, 128441410, 256882820, 783492601, 1566985202, 3133970404, 3917463005, 7834926010, 15669852020]

約数ペア:

[(1, 15669852020), (2, 7834926010), (4, 3917463005), (5, 3133970404), (10, 1566985202), (20, 783492601), (61, 256882820), (122, 128441410), (244, 64220705), (305, 51376564), (397, 39470660), (610, 25688282), (794, 19735330), (1220, 12844141), (1588, 9867665), (1985, 7894132), (3970, 3947066), (7940, 1973533), (24217, 647060), (32353, 484340), (48434, 323530), (64706, 242170), (96868, 161765), (121085, 129412)]