18628128

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{911}}^1$

素因数の和:998

約数の個数: 72

約数和(自身を含む): 53778816

約数和(自身を除く): 35150688

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 911, 1136, 1278, 1704, 1822, 2272, 2556, 2733, 3408, 3644, 5112, 5466, 6816, 7288, 8199, 10224, 10932, 14576, 16398, 20448, 21864, 29152, 32796, 43728, 64681, 65592, 87456, 129362, 131184, 194043, 258724, 262368, 388086, 517448, 582129, 776172, 1034896, 1164258, 1552344, 2069792, 2328516, 3104688, 4657032, 6209376, 9314064, 18628128]

約数ペア:

[(1, 18628128), (2, 9314064), (3, 6209376), (4, 4657032), (6, 3104688), (8, 2328516), (9, 2069792), (12, 1552344), (16, 1164258), (18, 1034896), (24, 776172), (32, 582129), (36, 517448), (48, 388086), (71, 262368), (72, 258724), (96, 194043), (142, 131184), (144, 129362), (213, 87456), (284, 65592), (288, 64681), (426, 43728), (568, 32796), (639, 29152), (852, 21864), (911, 20448), (1136, 16398), (1278, 14576), (1704, 10932), (1822, 10224), (2272, 8199), (2556, 7288), (2733, 6816), (3408, 5466), (3644, 5112)]