209809780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 487872000

約数和(自身を除く): 278062220

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 79, 95, 116, 145, 158, 190, 241, 290, 316, 380, 395, 482, 551, 580, 790, 964, 1102, 1205, 1501, 1580, 2204, 2291, 2410, 2755, 3002, 4579, 4582, 4820, 5510, 6004, 6989, 7505, 9158, 9164, 11020, 11455, 13978, 15010, 18316, 19039, 22895, 22910, 27956, 30020, 34945, 38078, 43529, 45790, 45820, 69890, 76156, 87058, 91580, 95195, 132791, 139780, 174116, 190390, 217645, 265582, 361741, 380780, 435290, 531164, 552131, 663955, 723482, 870580, 1104262, 1327910, 1446964, 1808705, 2208524, 2655820, 2760655, 3617410, 5521310, 7234820, 10490489, 11042620, 20980978, 41961956, 52452445, 104904890, 209809780]

約数ペア:

[(1, 209809780), (2, 104904890), (4, 52452445), (5, 41961956), (10, 20980978), (19, 11042620), (20, 10490489), (29, 7234820), (38, 5521310), (58, 3617410), (76, 2760655), (79, 2655820), (95, 2208524), (116, 1808705), (145, 1446964), (158, 1327910), (190, 1104262), (241, 870580), (290, 723482), (316, 663955), (380, 552131), (395, 531164), (482, 435290), (551, 380780), (580, 361741), (790, 265582), (964, 217645), (1102, 190390), (1205, 174116), (1501, 139780), (1580, 132791), (2204, 95195), (2291, 91580), (2410, 87058), (2755, 76156), (3002, 69890), (4579, 45820), (4582, 45790), (4820, 43529), (5510, 38078), (6004, 34945), (6989, 30020), (7505, 27956), (9158, 22910), (9164, 22895), (11020, 19039), (11455, 18316), (13978, 15010)]