20575040384

素因数分解:

$2^7\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{20749}}^1$

素因数の和:20951

約数の個数: 64

約数和(自身を含む): 41991360000

約数和(自身を除く): 21416319616

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 127, 128, 244, 254, 488, 508, 976, 1016, 1952, 2032, 3904, 4064, 7747, 7808, 8128, 15494, 16256, 20749, 30988, 41498, 61976, 82996, 123952, 165992, 247904, 331984, 495808, 663968, 991616, 1265689, 1327936, 2531378, 2635123, 2655872, 5062756, 5270246, 10125512, 10540492, 20251024, 21080984, 40502048, 42161968, 81004096, 84323936, 160742503, 162008192, 168647872, 321485006, 337295744, 642970012, 1285940024, 2571880048, 5143760096, 10287520192, 20575040384]

約数ペア:

[(1, 20575040384), (2, 10287520192), (4, 5143760096), (8, 2571880048), (16, 1285940024), (32, 642970012), (61, 337295744), (64, 321485006), (122, 168647872), (127, 162008192), (128, 160742503), (244, 84323936), (254, 81004096), (488, 42161968), (508, 40502048), (976, 21080984), (1016, 20251024), (1952, 10540492), (2032, 10125512), (3904, 5270246), (4064, 5062756), (7747, 2655872), (7808, 2635123), (8128, 2531378), (15494, 1327936), (16256, 1265689), (20749, 991616), (30988, 663968), (41498, 495808), (61976, 331984), (82996, 247904), (123952, 165992)]