18925725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 96

約数和(自身を含む): 39997440

約数和(自身を除く): 21071715

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 47, 59, 65, 75, 91, 105, 141, 175, 177, 195, 235, 273, 295, 325, 329, 413, 455, 525, 611, 705, 767, 885, 975, 987, 1175, 1239, 1365, 1475, 1645, 1833, 2065, 2275, 2301, 2773, 3055, 3525, 3835, 4277, 4425, 4935, 5369, 6195, 6825, 8225, 8319, 9165, 10325, 11505, 12831, 13865, 15275, 16107, 19175, 19411, 21385, 24675, 26845, 30975, 36049, 41595, 45825, 57525, 58233, 64155, 69325, 80535, 97055, 106925, 108147, 134225, 180245, 207975, 252343, 291165, 320775, 402675, 485275, 540735, 757029, 901225, 1261715, 1455825, 2703675, 3785145, 6308575, 18925725]

約数ペア:

[(1, 18925725), (3, 6308575), (5, 3785145), (7, 2703675), (13, 1455825), (15, 1261715), (21, 901225), (25, 757029), (35, 540735), (39, 485275), (47, 402675), (59, 320775), (65, 291165), (75, 252343), (91, 207975), (105, 180245), (141, 134225), (175, 108147), (177, 106925), (195, 97055), (235, 80535), (273, 69325), (295, 64155), (325, 58233), (329, 57525), (413, 45825), (455, 41595), (525, 36049), (611, 30975), (705, 26845), (767, 24675), (885, 21385), (975, 19411), (987, 19175), (1175, 16107), (1239, 15275), (1365, 13865), (1475, 12831), (1645, 11505), (1833, 10325), (2065, 9165), (2275, 8319), (2301, 8225), (2773, 6825), (3055, 6195), (3525, 5369), (3835, 4935), (4277, 4425)]