20378325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1453}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 38943936

約数和(自身を除く): 18565611

約数列:

[1, 3, 5, 11, 15, 17, 25, 33, 51, 55, 75, 85, 165, 187, 255, 275, 425, 561, 825, 935, 1275, 1453, 2805, 4359, 4675, 7265, 14025, 15983, 21795, 24701, 36325, 47949, 74103, 79915, 108975, 123505, 239745, 271711, 370515, 399575, 617525, 815133, 1198725, 1358555, 1852575, 4075665, 6792775, 20378325]

約数ペア:

[(1, 20378325), (3, 6792775), (5, 4075665), (11, 1852575), (15, 1358555), (17, 1198725), (25, 815133), (33, 617525), (51, 399575), (55, 370515), (75, 271711), (85, 239745), (165, 123505), (187, 108975), (255, 79915), (275, 74103), (425, 47949), (561, 36325), (825, 24701), (935, 21795), (1275, 15983), (1453, 14025), (2805, 7265), (4359, 4675)]