28122516

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{491}}^1$

素因数の和:581

約数の個数: 72

約数和(自身を含む): 74858784

約数和(自身を除く): 46736268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 43, 74, 86, 111, 129, 148, 172, 222, 258, 333, 387, 444, 491, 516, 666, 774, 982, 1332, 1473, 1548, 1591, 1964, 2946, 3182, 4419, 4773, 5892, 6364, 8838, 9546, 14319, 17676, 18167, 19092, 21113, 28638, 36334, 42226, 54501, 57276, 63339, 72668, 84452, 109002, 126678, 163503, 190017, 218004, 253356, 327006, 380034, 654012, 760068, 781181, 1562362, 2343543, 3124724, 4687086, 7030629, 9374172, 14061258, 28122516]

約数ペア:

[(1, 28122516), (2, 14061258), (3, 9374172), (4, 7030629), (6, 4687086), (9, 3124724), (12, 2343543), (18, 1562362), (36, 781181), (37, 760068), (43, 654012), (74, 380034), (86, 327006), (111, 253356), (129, 218004), (148, 190017), (172, 163503), (222, 126678), (258, 109002), (333, 84452), (387, 72668), (444, 63339), (491, 57276), (516, 54501), (666, 42226), (774, 36334), (982, 28638), (1332, 21113), (1473, 19092), (1548, 18167), (1591, 17676), (1964, 14319), (2946, 9546), (3182, 8838), (4419, 6364), (4773, 5892)]