201745990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{7639}}^1$

素因数の和:7804

約数の個数: 32

約数和(自身を含む): 385056000

約数和(自身を除く): 183310010

約数列:

[1, 2, 5, 10, 19, 38, 95, 139, 190, 278, 695, 1390, 2641, 5282, 7639, 13205, 15278, 26410, 38195, 76390, 145141, 290282, 725705, 1061821, 1451410, 2123642, 5309105, 10618210, 20174599, 40349198, 100872995, 201745990]

約数ペア:

[(1, 201745990), (2, 100872995), (5, 40349198), (10, 20174599), (19, 10618210), (38, 5309105), (95, 2123642), (139, 1451410), (190, 1061821), (278, 725705), (695, 290282), (1390, 145141), (2641, 76390), (5282, 38195), (7639, 26410), (13205, 15278)]