20503470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2767}}^1$

素因数の和:2809

約数の個数: 64

約数和(自身を含む): 55802880

約数和(自身を除く): 35299410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2767, 3705, 5534, 7410, 8301, 13835, 16602, 27670, 35971, 41505, 52573, 71942, 83010, 105146, 107913, 157719, 179855, 215826, 262865, 315438, 359710, 525730, 539565, 683449, 788595, 1079130, 1366898, 1577190, 2050347, 3417245, 4100694, 6834490, 10251735, 20503470]

約数ペア:

[(1, 20503470), (2, 10251735), (3, 6834490), (5, 4100694), (6, 3417245), (10, 2050347), (13, 1577190), (15, 1366898), (19, 1079130), (26, 788595), (30, 683449), (38, 539565), (39, 525730), (57, 359710), (65, 315438), (78, 262865), (95, 215826), (114, 179855), (130, 157719), (190, 107913), (195, 105146), (247, 83010), (285, 71942), (390, 52573), (494, 41505), (570, 35971), (741, 27670), (1235, 16602), (1482, 13835), (2470, 8301), (2767, 7410), (3705, 5534)]