2920840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 7302960

約数和(自身を除く): 4382120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 137, 164, 205, 260, 274, 328, 410, 520, 533, 548, 685, 820, 1066, 1096, 1370, 1640, 1781, 2132, 2665, 2740, 3562, 4264, 5330, 5480, 5617, 7124, 8905, 10660, 11234, 14248, 17810, 21320, 22468, 28085, 35620, 44936, 56170, 71240, 73021, 112340, 146042, 224680, 292084, 365105, 584168, 730210, 1460420, 2920840]

約数ペア:

[(1, 2920840), (2, 1460420), (4, 730210), (5, 584168), (8, 365105), (10, 292084), (13, 224680), (20, 146042), (26, 112340), (40, 73021), (41, 71240), (52, 56170), (65, 44936), (82, 35620), (104, 28085), (130, 22468), (137, 21320), (164, 17810), (205, 14248), (260, 11234), (274, 10660), (328, 8905), (410, 7124), (520, 5617), (533, 5480), (548, 5330), (685, 4264), (820, 3562), (1066, 2740), (1096, 2665), (1370, 2132), (1640, 1781)]