51688960

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:415

約数の個数: 80

約数和(自身を含む): 126344592

約数和(自身を除く): 74655632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 331, 488, 512, 610, 640, 662, 976, 1220, 1280, 1324, 1655, 1952, 2440, 2560, 2648, 3310, 3904, 4880, 5296, 6620, 7808, 9760, 10592, 13240, 15616, 19520, 20191, 21184, 26480, 31232, 39040, 40382, 42368, 52960, 78080, 80764, 84736, 100955, 105920, 156160, 161528, 169472, 201910, 211840, 323056, 403820, 423680, 646112, 807640, 847360, 1292224, 1615280, 2584448, 3230560, 5168896, 6461120, 10337792, 12922240, 25844480, 51688960]

約数ペア:

[(1, 51688960), (2, 25844480), (4, 12922240), (5, 10337792), (8, 6461120), (10, 5168896), (16, 3230560), (20, 2584448), (32, 1615280), (40, 1292224), (61, 847360), (64, 807640), (80, 646112), (122, 423680), (128, 403820), (160, 323056), (244, 211840), (256, 201910), (305, 169472), (320, 161528), (331, 156160), (488, 105920), (512, 100955), (610, 84736), (640, 80764), (662, 78080), (976, 52960), (1220, 42368), (1280, 40382), (1324, 39040), (1655, 31232), (1952, 26480), (2440, 21184), (2560, 20191), (2648, 19520), (3310, 15616), (3904, 13240), (4880, 10592), (5296, 9760), (6620, 7808)]