20512373980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{6343}}^1\times {\mathrm{23099}}^1$

素因数の和:29458

約数の個数: 48

約数和(自身を含む): 49239590400

約数和(自身を除く): 28727216420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 6343, 12686, 23099, 25372, 31715, 44401, 46198, 63430, 88802, 92396, 115495, 126860, 161693, 177604, 222005, 230990, 323386, 444010, 461980, 646772, 808465, 888020, 1616930, 3233860, 146516957, 293033914, 586067828, 732584785, 1025618699, 1465169570, 2051237398, 2930339140, 4102474796, 5128093495, 10256186990, 20512373980]

約数ペア:

[(1, 20512373980), (2, 10256186990), (4, 5128093495), (5, 4102474796), (7, 2930339140), (10, 2051237398), (14, 1465169570), (20, 1025618699), (28, 732584785), (35, 586067828), (70, 293033914), (140, 146516957), (6343, 3233860), (12686, 1616930), (23099, 888020), (25372, 808465), (31715, 646772), (44401, 461980), (46198, 444010), (63430, 323386), (88802, 230990), (92396, 222005), (115495, 177604), (126860, 161693)]