201789520

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{317}}^1$

素因数の和:512

約数の個数: 80

約数和(自身を含む): 481464720

約数和(自身を除く): 279675200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 109, 146, 218, 292, 317, 365, 436, 545, 584, 634, 730, 872, 1090, 1168, 1268, 1460, 1585, 1744, 2180, 2536, 2920, 3170, 4360, 5072, 5840, 6340, 7957, 8720, 12680, 15914, 23141, 25360, 31828, 34553, 39785, 46282, 63656, 69106, 79570, 92564, 115705, 127312, 138212, 159140, 172765, 185128, 231410, 276424, 318280, 345530, 370256, 462820, 552848, 636560, 691060, 925640, 1382120, 1851280, 2522369, 2764240, 5044738, 10089476, 12611845, 20178952, 25223690, 40357904, 50447380, 100894760, 201789520]

約数ペア:

[(1, 201789520), (2, 100894760), (4, 50447380), (5, 40357904), (8, 25223690), (10, 20178952), (16, 12611845), (20, 10089476), (40, 5044738), (73, 2764240), (80, 2522369), (109, 1851280), (146, 1382120), (218, 925640), (292, 691060), (317, 636560), (365, 552848), (436, 462820), (545, 370256), (584, 345530), (634, 318280), (730, 276424), (872, 231410), (1090, 185128), (1168, 172765), (1268, 159140), (1460, 138212), (1585, 127312), (1744, 115705), (2180, 92564), (2536, 79570), (2920, 69106), (3170, 63656), (4360, 46282), (5072, 39785), (5840, 34553), (6340, 31828), (7957, 25360), (8720, 23141), (12680, 15914)]