18534100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:349

約数の個数: 72

約数和(自身を含む): 44294040

約数和(自身を除く): 25759940

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 269, 325, 530, 538, 650, 689, 1060, 1076, 1300, 1325, 1345, 1378, 2650, 2690, 2756, 3445, 3497, 5300, 5380, 6725, 6890, 6994, 13450, 13780, 13988, 14257, 17225, 17485, 26900, 28514, 34450, 34970, 57028, 68900, 69940, 71285, 87425, 142570, 174850, 185341, 285140, 349700, 356425, 370682, 712850, 741364, 926705, 1425700, 1853410, 3706820, 4633525, 9267050, 18534100]

約数ペア:

[(1, 18534100), (2, 9267050), (4, 4633525), (5, 3706820), (10, 1853410), (13, 1425700), (20, 926705), (25, 741364), (26, 712850), (50, 370682), (52, 356425), (53, 349700), (65, 285140), (100, 185341), (106, 174850), (130, 142570), (212, 87425), (260, 71285), (265, 69940), (269, 68900), (325, 57028), (530, 34970), (538, 34450), (650, 28514), (689, 26900), (1060, 17485), (1076, 17225), (1300, 14257), (1325, 13988), (1345, 13780), (1378, 13450), (2650, 6994), (2690, 6890), (2756, 6725), (3445, 5380), (3497, 5300)]