30728985

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 60241920

約数和(自身を除く): 29512935

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 73, 95, 105, 133, 211, 219, 285, 365, 399, 511, 633, 665, 1055, 1095, 1387, 1477, 1533, 1995, 2555, 3165, 4009, 4161, 4431, 6935, 7385, 7665, 9709, 12027, 15403, 20045, 20805, 22155, 28063, 29127, 46209, 48545, 60135, 77015, 84189, 107821, 140315, 145635, 231045, 292657, 323463, 420945, 539105, 877971, 1463285, 1617315, 2048599, 4389855, 6145797, 10242995, 30728985]

約数ペア:

[(1, 30728985), (3, 10242995), (5, 6145797), (7, 4389855), (15, 2048599), (19, 1617315), (21, 1463285), (35, 877971), (57, 539105), (73, 420945), (95, 323463), (105, 292657), (133, 231045), (211, 145635), (219, 140315), (285, 107821), (365, 84189), (399, 77015), (511, 60135), (633, 48545), (665, 46209), (1055, 29127), (1095, 28063), (1387, 22155), (1477, 20805), (1533, 20045), (1995, 15403), (2555, 12027), (3165, 9709), (4009, 7665), (4161, 7385), (4431, 6935)]