31512850

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 61513920

約数和(自身を除く): 30001070

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 103, 145, 206, 211, 290, 422, 515, 725, 1030, 1055, 1450, 2110, 2575, 2987, 5150, 5275, 5974, 6119, 10550, 12238, 14935, 21733, 29870, 30595, 43466, 61190, 74675, 108665, 149350, 152975, 217330, 305950, 543325, 630257, 1086650, 1260514, 3151285, 6302570, 15756425, 31512850]

約数ペア:

[(1, 31512850), (2, 15756425), (5, 6302570), (10, 3151285), (25, 1260514), (29, 1086650), (50, 630257), (58, 543325), (103, 305950), (145, 217330), (206, 152975), (211, 149350), (290, 108665), (422, 74675), (515, 61190), (725, 43466), (1030, 30595), (1055, 29870), (1450, 21733), (2110, 14935), (2575, 12238), (2987, 10550), (5150, 6119), (5275, 5974)]