31220240

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{13457}}^1$

素因数の和:13499

約数の個数: 40

約数和(自身を含む): 75095640

約数和(自身を除く): 43875400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 13457, 26914, 53828, 67285, 107656, 134570, 215312, 269140, 390253, 538280, 780506, 1076560, 1561012, 1951265, 3122024, 3902530, 6244048, 7805060, 15610120, 31220240]

約数ペア:

[(1, 31220240), (2, 15610120), (4, 7805060), (5, 6244048), (8, 3902530), (10, 3122024), (16, 1951265), (20, 1561012), (29, 1076560), (40, 780506), (58, 538280), (80, 390253), (116, 269140), (145, 215312), (232, 134570), (290, 107656), (464, 67285), (580, 53828), (1160, 26914), (2320, 13457)]