81604250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 128

約数和(自身を含む): 200019456

約数和(自身を除く): 118415206

約数列:

[1, 2, 5, 7, 10, 13, 14, 17, 25, 26, 34, 35, 50, 65, 70, 85, 91, 119, 125, 130, 170, 175, 182, 211, 221, 238, 250, 325, 350, 422, 425, 442, 455, 595, 650, 850, 875, 910, 1055, 1105, 1190, 1477, 1547, 1625, 1750, 2110, 2125, 2210, 2275, 2743, 2954, 2975, 3094, 3250, 3587, 4250, 4550, 5275, 5486, 5525, 5950, 7174, 7385, 7735, 10550, 11050, 11375, 13715, 14770, 14875, 15470, 17935, 19201, 22750, 25109, 26375, 27430, 27625, 29750, 35870, 36925, 38402, 38675, 46631, 50218, 52750, 55250, 68575, 73850, 77350, 89675, 93262, 96005, 125545, 137150, 179350, 184625, 192010, 193375, 233155, 251090, 326417, 342875, 369250, 386750, 448375, 466310, 480025, 627725, 652834, 685750, 896750, 960050, 1165775, 1255450, 1632085, 2331550, 2400125, 3138625, 3264170, 4800250, 5828875, 6277250, 8160425, 11657750, 16320850, 40802125, 81604250]

約数ペア:

[(1, 81604250), (2, 40802125), (5, 16320850), (7, 11657750), (10, 8160425), (13, 6277250), (14, 5828875), (17, 4800250), (25, 3264170), (26, 3138625), (34, 2400125), (35, 2331550), (50, 1632085), (65, 1255450), (70, 1165775), (85, 960050), (91, 896750), (119, 685750), (125, 652834), (130, 627725), (170, 480025), (175, 466310), (182, 448375), (211, 386750), (221, 369250), (238, 342875), (250, 326417), (325, 251090), (350, 233155), (422, 193375), (425, 192010), (442, 184625), (455, 179350), (595, 137150), (650, 125545), (850, 96005), (875, 93262), (910, 89675), (1055, 77350), (1105, 73850), (1190, 68575), (1477, 55250), (1547, 52750), (1625, 50218), (1750, 46631), (2110, 38675), (2125, 38402), (2210, 36925), (2275, 35870), (2743, 29750), (2954, 27625), (2975, 27430), (3094, 26375), (3250, 25109), (3587, 22750), (4250, 19201), (4550, 17935), (5275, 15470), (5486, 14875), (5525, 14770), (5950, 13715), (7174, 11375), (7385, 11050), (7735, 10550)]