40353920

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3709}}^1$

素因数の和:3745

約数の個数: 64

約数和(自身を含む): 102173400

約数和(自身を除く): 61819480

約数列:

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

約数ペア:

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