69840925

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 112974912

約数和(自身を除く): 43133987

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 71, 73, 77, 175, 245, 275, 355, 365, 385, 497, 511, 539, 781, 803, 1225, 1775, 1825, 1925, 2485, 2555, 2695, 3479, 3577, 3905, 4015, 5183, 5467, 5621, 12425, 12775, 13475, 17395, 17885, 19525, 20075, 25915, 27335, 28105, 36281, 38269, 39347, 57013, 86975, 89425, 129575, 136675, 140525, 181405, 191345, 196735, 253967, 285065, 399091, 907025, 956725, 983675, 1269835, 1425325, 1995455, 2793637, 6349175, 9977275, 13968185, 69840925]

約数ペア:

[(1, 69840925), (5, 13968185), (7, 9977275), (11, 6349175), (25, 2793637), (35, 1995455), (49, 1425325), (55, 1269835), (71, 983675), (73, 956725), (77, 907025), (175, 399091), (245, 285065), (275, 253967), (355, 196735), (365, 191345), (385, 181405), (497, 140525), (511, 136675), (539, 129575), (781, 89425), (803, 86975), (1225, 57013), (1775, 39347), (1825, 38269), (1925, 36281), (2485, 28105), (2555, 27335), (2695, 25915), (3479, 20075), (3577, 19525), (3905, 17885), (4015, 17395), (5183, 13475), (5467, 12775), (5621, 12425)]