19521180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{15493}}^1$

素因数の和:15515

約数の個数: 72

約数和(自身を含む): 67677792

約数和(自身を除く): 48156612

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 15493, 30986, 46479, 61972, 77465, 92958, 108451, 139437, 154930, 185916, 216902, 232395, 278874, 309860, 325353, 433804, 464790, 542255, 557748, 650706, 697185, 929580, 976059, 1084510, 1301412, 1394370, 1626765, 1952118, 2169020, 2788740, 3253530, 3904236, 4880295, 6507060, 9760590, 19521180]

約数ペア:

[(1, 19521180), (2, 9760590), (3, 6507060), (4, 4880295), (5, 3904236), (6, 3253530), (7, 2788740), (9, 2169020), (10, 1952118), (12, 1626765), (14, 1394370), (15, 1301412), (18, 1084510), (20, 976059), (21, 929580), (28, 697185), (30, 650706), (35, 557748), (36, 542255), (42, 464790), (45, 433804), (60, 325353), (63, 309860), (70, 278874), (84, 232395), (90, 216902), (105, 185916), (126, 154930), (140, 139437), (180, 108451), (210, 92958), (252, 77465), (315, 61972), (420, 46479), (630, 30986), (1260, 15493)]