40783880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:654

約数の個数: 64

約数和(自身を含む): 97718400

約数和(自身を除く): 56934520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 521, 760, 824, 1030, 1042, 1957, 2060, 2084, 2605, 3914, 4120, 4168, 5210, 7828, 9785, 9899, 10420, 15656, 19570, 19798, 20840, 39140, 39596, 49495, 53663, 78280, 79192, 98990, 107326, 197980, 214652, 268315, 395960, 429304, 536630, 1019597, 1073260, 2039194, 2146520, 4078388, 5097985, 8156776, 10195970, 20391940, 40783880]

約数ペア:

[(1, 40783880), (2, 20391940), (4, 10195970), (5, 8156776), (8, 5097985), (10, 4078388), (19, 2146520), (20, 2039194), (38, 1073260), (40, 1019597), (76, 536630), (95, 429304), (103, 395960), (152, 268315), (190, 214652), (206, 197980), (380, 107326), (412, 98990), (515, 79192), (521, 78280), (760, 53663), (824, 49495), (1030, 39596), (1042, 39140), (1957, 20840), (2060, 19798), (2084, 19570), (2605, 15656), (3914, 10420), (4120, 9899), (4168, 9785), (5210, 7828)]