20286110

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 42577920

約数和(自身を除く): 22291810

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 43, 65, 86, 95, 130, 190, 191, 215, 247, 382, 430, 494, 559, 817, 955, 1118, 1235, 1634, 1910, 2470, 2483, 2795, 3629, 4085, 4966, 5590, 7258, 8170, 8213, 10621, 12415, 16426, 18145, 21242, 24830, 36290, 41065, 47177, 53105, 82130, 94354, 106210, 106769, 156047, 213538, 235885, 312094, 471770, 533845, 780235, 1067690, 1560470, 2028611, 4057222, 10143055, 20286110]

約数ペア:

[(1, 20286110), (2, 10143055), (5, 4057222), (10, 2028611), (13, 1560470), (19, 1067690), (26, 780235), (38, 533845), (43, 471770), (65, 312094), (86, 235885), (95, 213538), (130, 156047), (190, 106769), (191, 106210), (215, 94354), (247, 82130), (382, 53105), (430, 47177), (494, 41065), (559, 36290), (817, 24830), (955, 21242), (1118, 18145), (1235, 16426), (1634, 12415), (1910, 10621), (2470, 8213), (2483, 8170), (2795, 7258), (3629, 5590), (4085, 4966)]