20065605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 38707200

約数和(自身を除く): 18641595

約数列:

[1, 3, 5, 7, 15, 21, 35, 41, 59, 79, 105, 123, 177, 205, 237, 287, 295, 395, 413, 553, 615, 861, 885, 1185, 1239, 1435, 1659, 2065, 2419, 2765, 3239, 4305, 4661, 6195, 7257, 8295, 9717, 12095, 13983, 16195, 16933, 22673, 23305, 32627, 36285, 48585, 50799, 68019, 69915, 84665, 97881, 113365, 163135, 191101, 253995, 340095, 489405, 573303, 955505, 1337707, 2866515, 4013121, 6688535, 20065605]

約数ペア:

[(1, 20065605), (3, 6688535), (5, 4013121), (7, 2866515), (15, 1337707), (21, 955505), (35, 573303), (41, 489405), (59, 340095), (79, 253995), (105, 191101), (123, 163135), (177, 113365), (205, 97881), (237, 84665), (287, 69915), (295, 68019), (395, 50799), (413, 48585), (553, 36285), (615, 32627), (861, 23305), (885, 22673), (1185, 16933), (1239, 16195), (1435, 13983), (1659, 12095), (2065, 9717), (2419, 8295), (2765, 7257), (3239, 6195), (4305, 4661)]