15540698538

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{640009}}^1$

素因数の和:640107

約数の個数: 48

約数和(自身を含む): 35942961600

約数和(自身を除く): 20402263062

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 71, 114, 142, 171, 213, 342, 426, 639, 1278, 1349, 2698, 4047, 8094, 12141, 24282, 640009, 1280018, 1920027, 3840054, 5760081, 11520162, 12160171, 24320342, 36480513, 45440639, 72961026, 90881278, 109441539, 136321917, 218883078, 272643834, 408965751, 817931502, 863372141, 1726744282, 2590116423, 5180232846, 7770349269, 15540698538]

約数ペア:

[(1, 15540698538), (2, 7770349269), (3, 5180232846), (6, 2590116423), (9, 1726744282), (18, 863372141), (19, 817931502), (38, 408965751), (57, 272643834), (71, 218883078), (114, 136321917), (142, 109441539), (171, 90881278), (213, 72961026), (342, 45440639), (426, 36480513), (639, 24320342), (1278, 12160171), (1349, 11520162), (2698, 5760081), (4047, 3840054), (8094, 1920027), (12141, 1280018), (24282, 640009)]