331392165

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1997}}^1$

素因数の和:2078

約数の個数: 64

約数和(自身を含む): 612251136

約数和(自身を除く): 280858971

約数列:

[1, 3, 5, 13, 15, 23, 37, 39, 65, 69, 111, 115, 185, 195, 299, 345, 481, 555, 851, 897, 1443, 1495, 1997, 2405, 2553, 4255, 4485, 5991, 7215, 9985, 11063, 12765, 25961, 29955, 33189, 45931, 55315, 73889, 77883, 129805, 137793, 165945, 221667, 229655, 369445, 389415, 597103, 688965, 960557, 1108335, 1699447, 1791309, 2881671, 2985515, 4802785, 5098341, 8497235, 8956545, 14408355, 22092811, 25491705, 66278433, 110464055, 331392165]

約数ペア:

[(1, 331392165), (3, 110464055), (5, 66278433), (13, 25491705), (15, 22092811), (23, 14408355), (37, 8956545), (39, 8497235), (65, 5098341), (69, 4802785), (111, 2985515), (115, 2881671), (185, 1791309), (195, 1699447), (299, 1108335), (345, 960557), (481, 688965), (555, 597103), (851, 389415), (897, 369445), (1443, 229655), (1495, 221667), (1997, 165945), (2405, 137793), (2553, 129805), (4255, 77883), (4485, 73889), (5991, 55315), (7215, 45931), (9985, 33189), (11063, 29955), (12765, 25961)]