20768670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 61246080

約数和(自身を除く): 40477410

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 61, 65, 78, 90, 97, 117, 122, 130, 135, 183, 194, 195, 234, 270, 291, 305, 351, 366, 390, 485, 549, 582, 585, 610, 702, 793, 873, 915, 970, 1098, 1170, 1261, 1455, 1586, 1647, 1746, 1755, 1830, 2379, 2522, 2619, 2745, 2910, 3294, 3510, 3783, 3965, 4365, 4758, 5238, 5490, 5917, 6305, 7137, 7566, 7930, 8235, 8730, 11349, 11834, 11895, 12610, 13095, 14274, 16470, 17751, 18915, 21411, 22698, 23790, 26190, 29585, 34047, 35502, 35685, 37830, 42822, 53253, 56745, 59170, 68094, 71370, 76921, 88755, 106506, 107055, 113490, 153842, 159759, 170235, 177510, 214110, 230763, 266265, 319518, 340470, 384605, 461526, 532530, 692289, 769210, 798795, 1153815, 1384578, 1597590, 2076867, 2307630, 3461445, 4153734, 6922890, 10384335, 20768670]

約数ペア:

[(1, 20768670), (2, 10384335), (3, 6922890), (5, 4153734), (6, 3461445), (9, 2307630), (10, 2076867), (13, 1597590), (15, 1384578), (18, 1153815), (26, 798795), (27, 769210), (30, 692289), (39, 532530), (45, 461526), (54, 384605), (61, 340470), (65, 319518), (78, 266265), (90, 230763), (97, 214110), (117, 177510), (122, 170235), (130, 159759), (135, 153842), (183, 113490), (194, 107055), (195, 106506), (234, 88755), (270, 76921), (291, 71370), (305, 68094), (351, 59170), (366, 56745), (390, 53253), (485, 42822), (549, 37830), (582, 35685), (585, 35502), (610, 34047), (702, 29585), (793, 26190), (873, 23790), (915, 22698), (970, 21411), (1098, 18915), (1170, 17751), (1261, 16470), (1455, 14274), (1586, 13095), (1647, 12610), (1746, 11895), (1755, 11834), (1830, 11349), (2379, 8730), (2522, 8235), (2619, 7930), (2745, 7566), (2910, 7137), (3294, 6305), (3510, 5917), (3783, 5490), (3965, 5238), (4365, 4758)]