78548720

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13829}}^1$

素因数の和:13913

約数の個数: 40

約数和(自身を含む): 185211360

約数和(自身を除く): 106662640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13829, 27658, 55316, 69145, 110632, 138290, 221264, 276580, 553160, 981859, 1106320, 1963718, 3927436, 4909295, 7854872, 9818590, 15709744, 19637180, 39274360, 78548720]

約数ペア:

[(1, 78548720), (2, 39274360), (4, 19637180), (5, 15709744), (8, 9818590), (10, 7854872), (16, 4909295), (20, 3927436), (40, 1963718), (71, 1106320), (80, 981859), (142, 553160), (284, 276580), (355, 221264), (568, 138290), (710, 110632), (1136, 69145), (1420, 55316), (2840, 27658), (5680, 13829)]