208029328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{52639}}^1$

素因数の和:52679

約数の個数: 40

約数和(自身を含む): 456915200

約数和(自身を除く): 248885872

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 52639, 105278, 210556, 421112, 684307, 842224, 1000141, 1368614, 2000282, 2737228, 4000564, 5474456, 8001128, 10948912, 13001833, 16002256, 26003666, 52007332, 104014664, 208029328]

約数ペア:

[(1, 208029328), (2, 104014664), (4, 52007332), (8, 26003666), (13, 16002256), (16, 13001833), (19, 10948912), (26, 8001128), (38, 5474456), (52, 4000564), (76, 2737228), (104, 2000282), (152, 1368614), (208, 1000141), (247, 842224), (304, 684307), (494, 421112), (988, 210556), (1976, 105278), (3952, 52639)]