2000891216

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{509}}^1$

素因数の和:796

約数の個数: 80

約数和(自身を含む): 4171310400

約数和(自身を除く): 2170419184

約数列:

[1, 2, 4, 8, 16, 19, 38, 67, 76, 134, 152, 193, 268, 304, 386, 509, 536, 772, 1018, 1072, 1273, 1544, 2036, 2546, 3088, 3667, 4072, 5092, 7334, 8144, 9671, 10184, 12931, 14668, 19342, 20368, 25862, 29336, 34103, 38684, 51724, 58672, 68206, 77368, 98237, 103448, 136412, 154736, 196474, 206896, 245689, 272824, 392948, 491378, 545648, 647957, 785896, 982756, 1295914, 1571792, 1866503, 1965512, 2591828, 3733006, 3931024, 5183656, 6581879, 7466012, 10367312, 13163758, 14932024, 26327516, 29864048, 52655032, 105310064, 125055701, 250111402, 500222804, 1000445608, 2000891216]

約数ペア:

[(1, 2000891216), (2, 1000445608), (4, 500222804), (8, 250111402), (16, 125055701), (19, 105310064), (38, 52655032), (67, 29864048), (76, 26327516), (134, 14932024), (152, 13163758), (193, 10367312), (268, 7466012), (304, 6581879), (386, 5183656), (509, 3931024), (536, 3733006), (772, 2591828), (1018, 1965512), (1072, 1866503), (1273, 1571792), (1544, 1295914), (2036, 982756), (2546, 785896), (3088, 647957), (3667, 545648), (4072, 491378), (5092, 392948), (7334, 272824), (8144, 245689), (9671, 206896), (10184, 196474), (12931, 154736), (14668, 136412), (19342, 103448), (20368, 98237), (25862, 77368), (29336, 68206), (34103, 58672), (38684, 51724)]