80707840

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3709}}^1$

素因数の和:3747

約数の個数: 72

約数和(自身を含む): 204747480

約数和(自身を除く): 124039640

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1360, 2176, 2720, 3709, 4352, 5440, 7418, 10880, 14836, 18545, 21760, 29672, 37090, 59344, 63053, 74180, 118688, 126106, 148360, 237376, 252212, 296720, 315265, 474752, 504424, 593440, 630530, 949504, 1008848, 1186880, 1261060, 2017696, 2373760, 2522120, 4035392, 4747520, 5044240, 8070784, 10088480, 16141568, 20176960, 40353920, 80707840]

約数ペア:

[(1, 80707840), (2, 40353920), (4, 20176960), (5, 16141568), (8, 10088480), (10, 8070784), (16, 5044240), (17, 4747520), (20, 4035392), (32, 2522120), (34, 2373760), (40, 2017696), (64, 1261060), (68, 1186880), (80, 1008848), (85, 949504), (128, 630530), (136, 593440), (160, 504424), (170, 474752), (256, 315265), (272, 296720), (320, 252212), (340, 237376), (544, 148360), (640, 126106), (680, 118688), (1088, 74180), (1280, 63053), (1360, 59344), (2176, 37090), (2720, 29672), (3709, 21760), (4352, 18545), (5440, 14836), (7418, 10880)]