20142980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7043}}^1$

素因数の和:7076

約数の個数: 48

約数和(自身を含む): 49702464

約数和(自身を除く): 29559484

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 7043, 14086, 28172, 35215, 70430, 77473, 91559, 140860, 154946, 183118, 309892, 366236, 387365, 457795, 774730, 915590, 1007149, 1549460, 1831180, 2014298, 4028596, 5035745, 10071490, 20142980]

約数ペア:

[(1, 20142980), (2, 10071490), (4, 5035745), (5, 4028596), (10, 2014298), (11, 1831180), (13, 1549460), (20, 1007149), (22, 915590), (26, 774730), (44, 457795), (52, 387365), (55, 366236), (65, 309892), (110, 183118), (130, 154946), (143, 140860), (220, 91559), (260, 77473), (286, 70430), (572, 35215), (715, 28172), (1430, 14086), (2860, 7043)]