20139923980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{439}}^1\times {\mathrm{1381}}^1$

素因数の和:1991

約数の個数: 96

約数和(自身を含む): 46583792640

約数和(自身を除く): 26443868660

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 439, 604, 755, 878, 1381, 1510, 1661, 1756, 2195, 2762, 3020, 3322, 4390, 4829, 5524, 6644, 6905, 8305, 8780, 9658, 13810, 15191, 16610, 19316, 24145, 27620, 30382, 33220, 48290, 60764, 66289, 75955, 96580, 132578, 151910, 208531, 265156, 303820, 331445, 417062, 606259, 662890, 729179, 834124, 1042655, 1212518, 1325780, 1458358, 2085310, 2293841, 2425036, 2916716, 3031295, 3645895, 4170620, 4587682, 6062590, 6668849, 7291790, 9175364, 11469205, 12125180, 13337698, 14583580, 22938410, 26675396, 33344245, 45876820, 66688490, 91545109, 133376980, 183090218, 366180436, 457725545, 915451090, 1006996199, 1830902180, 2013992398, 4027984796, 5034980995, 10069961990, 20139923980]

約数ペア:

[(1, 20139923980), (2, 10069961990), (4, 5034980995), (5, 4027984796), (10, 2013992398), (11, 1830902180), (20, 1006996199), (22, 915451090), (44, 457725545), (55, 366180436), (110, 183090218), (151, 133376980), (220, 91545109), (302, 66688490), (439, 45876820), (604, 33344245), (755, 26675396), (878, 22938410), (1381, 14583580), (1510, 13337698), (1661, 12125180), (1756, 11469205), (2195, 9175364), (2762, 7291790), (3020, 6668849), (3322, 6062590), (4390, 4587682), (4829, 4170620), (5524, 3645895), (6644, 3031295), (6905, 2916716), (8305, 2425036), (8780, 2293841), (9658, 2085310), (13810, 1458358), (15191, 1325780), (16610, 1212518), (19316, 1042655), (24145, 834124), (27620, 729179), (30382, 662890), (33220, 606259), (48290, 417062), (60764, 331445), (66289, 303820), (75955, 265156), (96580, 208531), (132578, 151910)]