28931175

素因数分解:

$3^4\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:199

約数の個数: 120

約数和(自身を含む): 66377696

約数和(自身を除く): 37446521

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 63, 65, 75, 81, 91, 105, 117, 135, 157, 175, 189, 195, 225, 273, 315, 325, 351, 405, 455, 471, 525, 567, 585, 675, 785, 819, 945, 975, 1053, 1099, 1365, 1413, 1575, 1755, 2025, 2041, 2275, 2355, 2457, 2835, 2925, 3297, 3925, 4095, 4239, 4725, 5265, 5495, 6123, 6825, 7065, 7371, 8775, 9891, 10205, 11775, 12285, 12717, 14175, 14287, 16485, 18369, 20475, 21195, 26325, 27475, 29673, 30615, 35325, 36855, 42861, 49455, 51025, 55107, 61425, 63585, 71435, 82425, 89019, 91845, 105975, 128583, 148365, 153075, 165321, 184275, 214305, 247275, 275535, 317925, 357175, 385749, 445095, 459225, 642915, 741825, 826605, 1071525, 1157247, 1377675, 1928745, 2225475, 3214575, 4133025, 5786235, 9643725, 28931175]

約数ペア:

[(1, 28931175), (3, 9643725), (5, 5786235), (7, 4133025), (9, 3214575), (13, 2225475), (15, 1928745), (21, 1377675), (25, 1157247), (27, 1071525), (35, 826605), (39, 741825), (45, 642915), (63, 459225), (65, 445095), (75, 385749), (81, 357175), (91, 317925), (105, 275535), (117, 247275), (135, 214305), (157, 184275), (175, 165321), (189, 153075), (195, 148365), (225, 128583), (273, 105975), (315, 91845), (325, 89019), (351, 82425), (405, 71435), (455, 63585), (471, 61425), (525, 55107), (567, 51025), (585, 49455), (675, 42861), (785, 36855), (819, 35325), (945, 30615), (975, 29673), (1053, 27475), (1099, 26325), (1365, 21195), (1413, 20475), (1575, 18369), (1755, 16485), (2025, 14287), (2041, 14175), (2275, 12717), (2355, 12285), (2457, 11775), (2835, 10205), (2925, 9891), (3297, 8775), (3925, 7371), (4095, 7065), (4239, 6825), (4725, 6123), (5265, 5495)]