28774005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:182

約数の個数: 64

約数和(自身を含む): 52496640

約数和(自身を除く): 23722635

約数列:

[1, 3, 5, 13, 15, 39, 41, 59, 61, 65, 123, 177, 183, 195, 205, 295, 305, 533, 615, 767, 793, 885, 915, 1599, 2301, 2379, 2419, 2501, 2665, 3599, 3835, 3965, 7257, 7503, 7995, 10797, 11505, 11895, 12095, 12505, 17995, 31447, 32513, 36285, 37515, 46787, 53985, 94341, 97539, 140361, 147559, 157235, 162565, 233935, 442677, 471705, 487695, 701805, 737795, 1918267, 2213385, 5754801, 9591335, 28774005]

約数ペア:

[(1, 28774005), (3, 9591335), (5, 5754801), (13, 2213385), (15, 1918267), (39, 737795), (41, 701805), (59, 487695), (61, 471705), (65, 442677), (123, 233935), (177, 162565), (183, 157235), (195, 147559), (205, 140361), (295, 97539), (305, 94341), (533, 53985), (615, 46787), (767, 37515), (793, 36285), (885, 32513), (915, 31447), (1599, 17995), (2301, 12505), (2379, 12095), (2419, 11895), (2501, 11505), (2665, 10797), (3599, 7995), (3835, 7503), (3965, 7257)]