90391720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{132929}}^1$

素因数の和:132957

約数の個数: 32

約数和(自身を含む): 215346600

約数和(自身を除く): 124954880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 132929, 265858, 531716, 664645, 1063432, 1329290, 2259793, 2658580, 4519586, 5317160, 9039172, 11298965, 18078344, 22597930, 45195860, 90391720]

約数ペア:

[(1, 90391720), (2, 45195860), (4, 22597930), (5, 18078344), (8, 11298965), (10, 9039172), (17, 5317160), (20, 4519586), (34, 2658580), (40, 2259793), (68, 1329290), (85, 1063432), (136, 664645), (170, 531716), (340, 265858), (680, 132929)]