20752164

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 55665792

約数和(自身を除く): 34913628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 71, 92, 138, 142, 207, 213, 276, 284, 353, 414, 426, 639, 706, 828, 852, 1059, 1278, 1412, 1633, 2118, 2556, 3177, 3266, 4236, 4899, 6354, 6532, 8119, 9798, 12708, 14697, 16238, 19596, 24357, 25063, 29394, 32476, 48714, 50126, 58788, 73071, 75189, 97428, 100252, 146142, 150378, 225567, 292284, 300756, 451134, 576449, 902268, 1152898, 1729347, 2305796, 3458694, 5188041, 6917388, 10376082, 20752164]

約数ペア:

[(1, 20752164), (2, 10376082), (3, 6917388), (4, 5188041), (6, 3458694), (9, 2305796), (12, 1729347), (18, 1152898), (23, 902268), (36, 576449), (46, 451134), (69, 300756), (71, 292284), (92, 225567), (138, 150378), (142, 146142), (207, 100252), (213, 97428), (276, 75189), (284, 73071), (353, 58788), (414, 50126), (426, 48714), (639, 32476), (706, 29394), (828, 25063), (852, 24357), (1059, 19596), (1278, 16238), (1412, 14697), (1633, 12708), (2118, 9798), (2556, 8119), (3177, 6532), (3266, 6354), (4236, 4899)]