28756620

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:182

約数の個数: 144

約数和(自身を含む): 92889888

約数和(自身を除く): 64133268

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 97, 108, 122, 135, 162, 180, 183, 194, 243, 244, 270, 291, 305, 324, 366, 388, 405, 485, 486, 540, 549, 582, 610, 732, 810, 873, 915, 970, 972, 1098, 1164, 1215, 1220, 1455, 1620, 1647, 1746, 1830, 1940, 2196, 2430, 2619, 2745, 2910, 3294, 3492, 3660, 4365, 4860, 4941, 5238, 5490, 5820, 5917, 6588, 7857, 8235, 8730, 9882, 10476, 10980, 11834, 13095, 14823, 15714, 16470, 17460, 17751, 19764, 23571, 23668, 24705, 26190, 29585, 29646, 31428, 32940, 35502, 39285, 47142, 49410, 52380, 53253, 59170, 59292, 71004, 74115, 78570, 88755, 94284, 98820, 106506, 117855, 118340, 148230, 157140, 159759, 177510, 213012, 235710, 266265, 296460, 319518, 355020, 471420, 479277, 532530, 639036, 798795, 958554, 1065060, 1437831, 1597590, 1917108, 2396385, 2875662, 3195180, 4792770, 5751324, 7189155, 9585540, 14378310, 28756620]

約数ペア:

[(1, 28756620), (2, 14378310), (3, 9585540), (4, 7189155), (5, 5751324), (6, 4792770), (9, 3195180), (10, 2875662), (12, 2396385), (15, 1917108), (18, 1597590), (20, 1437831), (27, 1065060), (30, 958554), (36, 798795), (45, 639036), (54, 532530), (60, 479277), (61, 471420), (81, 355020), (90, 319518), (97, 296460), (108, 266265), (122, 235710), (135, 213012), (162, 177510), (180, 159759), (183, 157140), (194, 148230), (243, 118340), (244, 117855), (270, 106506), (291, 98820), (305, 94284), (324, 88755), (366, 78570), (388, 74115), (405, 71004), (485, 59292), (486, 59170), (540, 53253), (549, 52380), (582, 49410), (610, 47142), (732, 39285), (810, 35502), (873, 32940), (915, 31428), (970, 29646), (972, 29585), (1098, 26190), (1164, 24705), (1215, 23668), (1220, 23571), (1455, 19764), (1620, 17751), (1647, 17460), (1746, 16470), (1830, 15714), (1940, 14823), (2196, 13095), (2430, 11834), (2619, 10980), (2745, 10476), (2910, 9882), (3294, 8730), (3492, 8235), (3660, 7857), (4365, 6588), (4860, 5917), (4941, 5820), (5238, 5490)]