28281975

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 49996800

約数和(自身を除く): 21714825

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 89, 95, 223, 267, 285, 445, 475, 669, 1115, 1335, 1425, 1691, 2225, 3345, 4237, 5073, 5575, 6675, 8455, 12711, 16725, 19847, 21185, 25365, 42275, 59541, 63555, 99235, 105925, 126825, 297705, 317775, 377093, 496175, 1131279, 1488525, 1885465, 5656395, 9427325, 28281975]

約数ペア:

[(1, 28281975), (3, 9427325), (5, 5656395), (15, 1885465), (19, 1488525), (25, 1131279), (57, 496175), (75, 377093), (89, 317775), (95, 297705), (223, 126825), (267, 105925), (285, 99235), (445, 63555), (475, 59541), (669, 42275), (1115, 25365), (1335, 21185), (1425, 19847), (1691, 16725), (2225, 12711), (3345, 8455), (4237, 6675), (5073, 5575)]