668835975

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 1206779904

約数和(自身を除く): 537943929

約数列:

[1, 3, 5, 15, 23, 25, 43, 69, 71, 75, 115, 127, 129, 213, 215, 345, 355, 381, 575, 635, 645, 989, 1065, 1075, 1633, 1725, 1775, 1905, 2921, 2967, 3053, 3175, 3225, 4899, 4945, 5325, 5461, 8165, 8763, 9017, 9159, 9525, 14605, 14835, 15265, 16383, 24495, 24725, 27051, 27305, 40825, 43815, 45085, 45795, 70219, 73025, 74175, 76325, 81915, 122475, 125603, 135255, 136525, 207391, 210657, 219075, 225425, 228975, 351095, 376809, 387731, 409575, 622173, 628015, 676275, 1036955, 1053285, 1163193, 1755475, 1884045, 1938655, 3110865, 3140075, 5184775, 5266425, 5815965, 8917813, 9420225, 9693275, 15554325, 26753439, 29079825, 44589065, 133767195, 222945325, 668835975]

約数ペア:

[(1, 668835975), (3, 222945325), (5, 133767195), (15, 44589065), (23, 29079825), (25, 26753439), (43, 15554325), (69, 9693275), (71, 9420225), (75, 8917813), (115, 5815965), (127, 5266425), (129, 5184775), (213, 3140075), (215, 3110865), (345, 1938655), (355, 1884045), (381, 1755475), (575, 1163193), (635, 1053285), (645, 1036955), (989, 676275), (1065, 628015), (1075, 622173), (1633, 409575), (1725, 387731), (1775, 376809), (1905, 351095), (2921, 228975), (2967, 225425), (3053, 219075), (3175, 210657), (3225, 207391), (4899, 136525), (4945, 135255), (5325, 125603), (5461, 122475), (8165, 81915), (8763, 76325), (9017, 74175), (9159, 73025), (9525, 70219), (14605, 45795), (14835, 45085), (15265, 43815), (16383, 40825), (24495, 27305), (24725, 27051)]