20219819792

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{227}}^1\times {\mathrm{379}}^1\times {\mathrm{397}}^1$

素因数の和:1048

約数の個数: 80

約数和(自身を含む): 40620644160

約数和(自身を除く): 20400824368

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 227, 296, 379, 397, 454, 592, 758, 794, 908, 1516, 1588, 1816, 3032, 3176, 3632, 6064, 6352, 8399, 14023, 14689, 16798, 28046, 29378, 33596, 56092, 58756, 67192, 86033, 90119, 112184, 117512, 134384, 150463, 172066, 180238, 224368, 235024, 300926, 344132, 360476, 601852, 688264, 720952, 1203704, 1376528, 1441904, 2407408, 3183221, 3334403, 5567131, 6366442, 6668806, 11134262, 12732884, 13337612, 22268524, 25465768, 26675224, 34155101, 44537048, 50931536, 53350448, 68310202, 89074096, 136620404, 273240808, 546481616, 1263738737, 2527477474, 5054954948, 10109909896, 20219819792]

約数ペア:

[(1, 20219819792), (2, 10109909896), (4, 5054954948), (8, 2527477474), (16, 1263738737), (37, 546481616), (74, 273240808), (148, 136620404), (227, 89074096), (296, 68310202), (379, 53350448), (397, 50931536), (454, 44537048), (592, 34155101), (758, 26675224), (794, 25465768), (908, 22268524), (1516, 13337612), (1588, 12732884), (1816, 11134262), (3032, 6668806), (3176, 6366442), (3632, 5567131), (6064, 3334403), (6352, 3183221), (8399, 2407408), (14023, 1441904), (14689, 1376528), (16798, 1203704), (28046, 720952), (29378, 688264), (33596, 601852), (56092, 360476), (58756, 344132), (67192, 300926), (86033, 235024), (90119, 224368), (112184, 180238), (117512, 172066), (134384, 150463)]