78257120

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28771}}^1$

素因数の和:28803

約数の個数: 48

約数和(自身を含む): 195764688

約数和(自身を除く): 117507568

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 28771, 57542, 115084, 143855, 230168, 287710, 460336, 489107, 575420, 920672, 978214, 1150840, 1956428, 2301680, 2445535, 3912856, 4603360, 4891070, 7825712, 9782140, 15651424, 19564280, 39128560, 78257120]

約数ペア:

[(1, 78257120), (2, 39128560), (4, 19564280), (5, 15651424), (8, 9782140), (10, 7825712), (16, 4891070), (17, 4603360), (20, 3912856), (32, 2445535), (34, 2301680), (40, 1956428), (68, 1150840), (80, 978214), (85, 920672), (136, 575420), (160, 489107), (170, 460336), (272, 287710), (340, 230168), (544, 143855), (680, 115084), (1360, 57542), (2720, 28771)]