20296984

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{983}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 39852000

約数和(自身を除く): 19555016

約数列:

[1, 2, 4, 8, 29, 58, 89, 116, 178, 232, 356, 712, 983, 1966, 2581, 3932, 5162, 7864, 10324, 20648, 28507, 57014, 87487, 114028, 174974, 228056, 349948, 699896, 2537123, 5074246, 10148492, 20296984]

約数ペア:

[(1, 20296984), (2, 10148492), (4, 5074246), (8, 2537123), (29, 699896), (58, 349948), (89, 228056), (116, 174974), (178, 114028), (232, 87487), (356, 57014), (712, 28507), (983, 20648), (1966, 10324), (2581, 7864), (3932, 5162)]