643499415

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:593

約数の個数: 96

約数和(自身を含む): 1260342720

約数和(自身を除く): 616843305

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 83, 87, 117, 145, 195, 249, 261, 377, 415, 435, 457, 585, 747, 1079, 1131, 1245, 1305, 1371, 1885, 2285, 2407, 3237, 3393, 3735, 4113, 5395, 5655, 5941, 6855, 7221, 9711, 12035, 13253, 16185, 16965, 17823, 20565, 21663, 29705, 31291, 36105, 37931, 39759, 48555, 53469, 66265, 89115, 93873, 108315, 113793, 119277, 156455, 172289, 189655, 198795, 267345, 281619, 341379, 469365, 493103, 516867, 568965, 596385, 861445, 1099999, 1408095, 1479309, 1550601, 1706895, 2465515, 2584335, 3299997, 4437927, 5499995, 7396545, 7753005, 9899991, 14299987, 16499985, 22189635, 42899961, 49499955, 71499935, 128699883, 214499805, 643499415]

約数ペア:

[(1, 643499415), (3, 214499805), (5, 128699883), (9, 71499935), (13, 49499955), (15, 42899961), (29, 22189635), (39, 16499985), (45, 14299987), (65, 9899991), (83, 7753005), (87, 7396545), (117, 5499995), (145, 4437927), (195, 3299997), (249, 2584335), (261, 2465515), (377, 1706895), (415, 1550601), (435, 1479309), (457, 1408095), (585, 1099999), (747, 861445), (1079, 596385), (1131, 568965), (1245, 516867), (1305, 493103), (1371, 469365), (1885, 341379), (2285, 281619), (2407, 267345), (3237, 198795), (3393, 189655), (3735, 172289), (4113, 156455), (5395, 119277), (5655, 113793), (5941, 108315), (6855, 93873), (7221, 89115), (9711, 66265), (12035, 53469), (13253, 48555), (16185, 39759), (16965, 37931), (17823, 36105), (20565, 31291), (21663, 29705)]