27904760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 68402880

約数和(自身を除く): 40498120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 103, 104, 130, 206, 260, 412, 515, 520, 521, 824, 1030, 1042, 1339, 2060, 2084, 2605, 2678, 4120, 4168, 5210, 5356, 6695, 6773, 10420, 10712, 13390, 13546, 20840, 26780, 27092, 33865, 53560, 53663, 54184, 67730, 107326, 135460, 214652, 268315, 270920, 429304, 536630, 697619, 1073260, 1395238, 2146520, 2790476, 3488095, 5580952, 6976190, 13952380, 27904760]

約数ペア:

[(1, 27904760), (2, 13952380), (4, 6976190), (5, 5580952), (8, 3488095), (10, 2790476), (13, 2146520), (20, 1395238), (26, 1073260), (40, 697619), (52, 536630), (65, 429304), (103, 270920), (104, 268315), (130, 214652), (206, 135460), (260, 107326), (412, 67730), (515, 54184), (520, 53663), (521, 53560), (824, 33865), (1030, 27092), (1042, 26780), (1339, 20840), (2060, 13546), (2084, 13390), (2605, 10712), (2678, 10420), (4120, 6773), (4168, 6695), (5210, 5356)]