8638340

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 19232640

約数和(自身を除く): 10594300

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 211, 230, 356, 422, 445, 460, 844, 890, 1055, 1780, 2047, 2110, 4094, 4220, 4853, 8188, 9706, 10235, 18779, 19412, 20470, 24265, 37558, 40940, 48530, 75116, 93895, 97060, 187790, 375580, 431917, 863834, 1727668, 2159585, 4319170, 8638340]

約数ペア:

[(1, 8638340), (2, 4319170), (4, 2159585), (5, 1727668), (10, 863834), (20, 431917), (23, 375580), (46, 187790), (89, 97060), (92, 93895), (115, 75116), (178, 48530), (211, 40940), (230, 37558), (356, 24265), (422, 20470), (445, 19412), (460, 18779), (844, 10235), (890, 9706), (1055, 8188), (1780, 4853), (2047, 4220), (2110, 4094)]