20863700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1459}}^1$

素因数の和:1497

約数の個数: 72

約数和(自身を含む): 53225760

約数和(自身を除く): 32362060

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1430, 1459, 2860, 2918, 3575, 5836, 7150, 7295, 14300, 14590, 16049, 18967, 29180, 32098, 36475, 37934, 64196, 72950, 75868, 80245, 94835, 145900, 160490, 189670, 208637, 320980, 379340, 401225, 417274, 474175, 802450, 834548, 948350, 1043185, 1604900, 1896700, 2086370, 4172740, 5215925, 10431850, 20863700]

約数ペア:

[(1, 20863700), (2, 10431850), (4, 5215925), (5, 4172740), (10, 2086370), (11, 1896700), (13, 1604900), (20, 1043185), (22, 948350), (25, 834548), (26, 802450), (44, 474175), (50, 417274), (52, 401225), (55, 379340), (65, 320980), (100, 208637), (110, 189670), (130, 160490), (143, 145900), (220, 94835), (260, 80245), (275, 75868), (286, 72950), (325, 64196), (550, 37934), (572, 36475), (650, 32098), (715, 29180), (1100, 18967), (1300, 16049), (1430, 14590), (1459, 14300), (2860, 7295), (2918, 7150), (3575, 5836)]