20663604

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{659}}^1$

素因数の和:749

約数の個数: 72

約数和(自身を含む): 57177120

約数和(自身を除く): 36513516

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 67, 78, 117, 134, 156, 201, 234, 268, 402, 468, 603, 659, 804, 871, 1206, 1318, 1742, 1977, 2412, 2613, 2636, 3484, 3954, 5226, 5931, 7839, 7908, 8567, 10452, 11862, 15678, 17134, 23724, 25701, 31356, 34268, 44153, 51402, 77103, 88306, 102804, 132459, 154206, 176612, 264918, 308412, 397377, 529836, 573989, 794754, 1147978, 1589508, 1721967, 2295956, 3443934, 5165901, 6887868, 10331802, 20663604]

約数ペア:

[(1, 20663604), (2, 10331802), (3, 6887868), (4, 5165901), (6, 3443934), (9, 2295956), (12, 1721967), (13, 1589508), (18, 1147978), (26, 794754), (36, 573989), (39, 529836), (52, 397377), (67, 308412), (78, 264918), (117, 176612), (134, 154206), (156, 132459), (201, 102804), (234, 88306), (268, 77103), (402, 51402), (468, 44153), (603, 34268), (659, 31356), (804, 25701), (871, 23724), (1206, 17134), (1318, 15678), (1742, 11862), (1977, 10452), (2412, 8567), (2613, 7908), (2636, 7839), (3484, 5931), (3954, 5226)]