666569936

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{22031}}^1$

素因数の和:22131

約数の個数: 40

約数和(自身を含む): 1355056128

約数和(自身を除く): 688486192

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 3782, 7564, 15128, 22031, 30256, 44062, 88124, 176248, 352496, 682961, 1343891, 1365922, 2687782, 2731844, 5375564, 5463688, 10751128, 10927376, 21502256, 41660621, 83321242, 166642484, 333284968, 666569936]

約数ペア:

[(1, 666569936), (2, 333284968), (4, 166642484), (8, 83321242), (16, 41660621), (31, 21502256), (61, 10927376), (62, 10751128), (122, 5463688), (124, 5375564), (244, 2731844), (248, 2687782), (488, 1365922), (496, 1343891), (976, 682961), (1891, 352496), (3782, 176248), (7564, 88124), (15128, 44062), (22031, 30256)]