39881968

素因数分解:

$2^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{4001}}^1$

素因数の和:4105

約数の個数: 40

約数和(自身を含む): 89324640

約数和(自身を除く): 49442672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 89, 112, 178, 356, 623, 712, 1246, 1424, 2492, 4001, 4984, 8002, 9968, 16004, 28007, 32008, 56014, 64016, 112028, 224056, 356089, 448112, 712178, 1424356, 2492623, 2848712, 4985246, 5697424, 9970492, 19940984, 39881968]

約数ペア:

[(1, 39881968), (2, 19940984), (4, 9970492), (7, 5697424), (8, 4985246), (14, 2848712), (16, 2492623), (28, 1424356), (56, 712178), (89, 448112), (112, 356089), (178, 224056), (356, 112028), (623, 64016), (712, 56014), (1246, 32008), (1424, 28007), (2492, 16004), (4001, 9968), (4984, 8002)]