71811280

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5507}}^1$

素因数の和:5683

約数の個数: 40

約数和(自身を含む): 168016032

約数和(自身を除く): 96204752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 5507, 6520, 11014, 13040, 22028, 27535, 44056, 55070, 88112, 110140, 220280, 440560, 897641, 1795282, 3590564, 4488205, 7181128, 8976410, 14362256, 17952820, 35905640, 71811280]

約数ペア:

[(1, 71811280), (2, 35905640), (4, 17952820), (5, 14362256), (8, 8976410), (10, 7181128), (16, 4488205), (20, 3590564), (40, 1795282), (80, 897641), (163, 440560), (326, 220280), (652, 110140), (815, 88112), (1304, 55070), (1630, 44056), (2608, 27535), (3260, 22028), (5507, 13040), (6520, 11014)]