20694825

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:116

約数の個数: 96

約数和(自身を含む): 41902080

約数和(自身を除く): 21207255

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 31, 43, 45, 69, 75, 93, 115, 129, 135, 155, 207, 215, 225, 279, 345, 387, 465, 575, 621, 645, 675, 713, 775, 837, 989, 1035, 1075, 1161, 1333, 1395, 1725, 1935, 2139, 2325, 2967, 3105, 3225, 3565, 3999, 4185, 4945, 5175, 5805, 6417, 6665, 6975, 8901, 9675, 10695, 11997, 14835, 15525, 17825, 19251, 19995, 20925, 24725, 26703, 29025, 30659, 32085, 33325, 35991, 44505, 53475, 59985, 74175, 91977, 96255, 99975, 133515, 153295, 160425, 179955, 222525, 275931, 299925, 459885, 481275, 667575, 766475, 827793, 899775, 1379655, 2299425, 4138965, 6898275, 20694825]

約数ペア:

[(1, 20694825), (3, 6898275), (5, 4138965), (9, 2299425), (15, 1379655), (23, 899775), (25, 827793), (27, 766475), (31, 667575), (43, 481275), (45, 459885), (69, 299925), (75, 275931), (93, 222525), (115, 179955), (129, 160425), (135, 153295), (155, 133515), (207, 99975), (215, 96255), (225, 91977), (279, 74175), (345, 59985), (387, 53475), (465, 44505), (575, 35991), (621, 33325), (645, 32085), (675, 30659), (713, 29025), (775, 26703), (837, 24725), (989, 20925), (1035, 19995), (1075, 19251), (1161, 17825), (1333, 15525), (1395, 14835), (1725, 11997), (1935, 10695), (2139, 9675), (2325, 8901), (2967, 6975), (3105, 6665), (3225, 6417), (3565, 5805), (3999, 5175), (4185, 4945)]