28555605

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 27327915

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 53, 65, 117, 135, 159, 195, 265, 307, 351, 477, 585, 689, 795, 921, 1431, 1535, 1755, 2067, 2385, 2763, 3445, 3991, 4605, 6201, 7155, 8289, 10335, 11973, 13815, 16271, 18603, 19955, 31005, 35919, 41445, 48813, 59865, 81355, 93015, 107757, 146439, 179595, 211523, 244065, 439317, 538785, 634569, 732195, 1057615, 1903707, 2196585, 3172845, 5711121, 9518535, 28555605]

約数ペア:

[(1, 28555605), (3, 9518535), (5, 5711121), (9, 3172845), (13, 2196585), (15, 1903707), (27, 1057615), (39, 732195), (45, 634569), (53, 538785), (65, 439317), (117, 244065), (135, 211523), (159, 179595), (195, 146439), (265, 107757), (307, 93015), (351, 81355), (477, 59865), (585, 48813), (689, 41445), (795, 35919), (921, 31005), (1431, 19955), (1535, 18603), (1755, 16271), (2067, 13815), (2385, 11973), (2763, 10335), (3445, 8289), (3991, 7155), (4605, 6201)]